EXHIBIT 1.1


                                 4,000,000 STOCK

                           ESPERION THERAPEUTICS, INC.

                                  COMMON STOCK

                             UNDERWRITING AGREEMENT


                                                                   July __, 2003



LEHMAN BROTHERS INC.,
CITIGROUP GLOBAL MARKETS INC.
NEEDHAM & COMPANY, INC.
SG COWEN SECURITIES CORPORATION
U.S. BANCORP PIPER JAFFRAY INC.
As Representatives of the Several
  Underwriters Named in Schedule I
c/o Lehman Brothers Inc.
745 Seventh Avenue
New York, New York  10019


Ladies and Gentlemen:

                  Esperion Therapeutics, Inc., a Delaware corporation (the
"Company"), proposes to issue and sell to the underwriters named in Schedule 1
hereto (the "Underwriters"), 4,000,000 shares (the "Firm Stock") of the
Company's common stock, par value $0.001 per share (including the Rights (as
defined in Section 1(g)) attached hereto) (the "Common Stock").

                  In addition, the Company proposes to grant to the Underwriters
an option to purchase up to an additional 434,000 shares of the Common Stock and
certain Stockholders of the Company named in Schedule 2 hereto (the "Selling
Stockholders") also propose to grant to the Underwriters an option to purchase
an additional 166,000 shares of the Common Stock on the terms and for the
purposes set forth in Section 3 (such 166,000 additional shares, in aggregate,
being referred to hereinafter as the "Option Stock"). The Firm Stock and the
Option Stock, if purchased, are hereinafter collectively called the "Stock."
This is to confirm the agreement concerning the purchase of the Stock from the
Company and the Selling Stockholders by the Underwriters.

                  1. Representations, Warranties and Agreements of the Company.
The Company represents, warrants and agrees that:

                  (a) A registration statement on Form S-3, and an amendment
         thereto, with respect to the Stock has (i) been prepared by the Company
         in conformity with the requirements of the United States Securities Act
         of 1933, as amended (the "Securities Act") and the rules and
         regulations (the "Rule and Regulations") of the United States
         Securities and Exchange Commission (the "Commission") thereunder, (ii)
         been filed with





         the Commission under the Securities Act and (iii) become effective
         under the Securities Act. Copies of such registration statement have
         been delivered by the Company to you as the representatives (the
         "Representatives") of the Underwriters. As used in this Agreement,
         "Effective Time" means the date and the time as of which such
         registration statement, or the most recent post-effective amendment
         thereto, if any, was declared effective by the Commission; "Effective
         Date" means the date of the Effective Time; "Preliminary Prospectus"
         means each prospectus included in such registration statement, or
         amendments thereof, before it became effective under the Securities Act
         and any prospectus filed with the Commission by the Company with the
         consent of the Representatives pursuant to Rule 424(a) of the Rules and
         Regulations; "Registration Statement" means such registration
         statement, as amended at the Effective Time, including any documents
         incorporated by reference therein at such time and all information
         contained in the final prospectus filed with the Commission pursuant to
         Rule 424(b) of the Rules and Regulations in accordance with Section
         6(a) hereof and deemed to be a part of the registration statement as of
         the Effective Time pursuant to paragraph (b) of Rule 430A of the Rules
         and Regulations; and "Prospectus" means such final prospectus, as first
         filed with the Commission pursuant to paragraph (1) or (4) of Rule
         424(b) of the Rules and Regulations. Reference made herein to any
         Preliminary Prospectus or to the Prospectus shall be deemed to refer to
         and include any documents incorporated by reference therein pursuant to
         Item 12 of Form S-3 under the Securities Act, as of the date of such
         Preliminary Prospectus or the Prospectus, as the case may be, as of the
         date of such amendment or supplement, and any reference to any
         amendment or supplement to any Preliminary Prospectus or the Prospectus
         shall be deemed to refer to and include any document filed under the
         United States Securities Exchange Act of 1934, as amended (the
         "Exchange Act"), after the date of such Preliminary Prospectus or the
         Prospectus, as the case may be, and incorporated by reference in such
         Preliminary Prospectus or the Prospectus, as the case may be; and any
         reference to any amendment to the Registration Statement shall be
         deemed to include any annual report of the Company filed with the
         Commission pursuant to Section 13(a) or 15(d) of the Exchange Act after
         the Effective Time that is incorporated by reference in the
         Registration Statement. The Commission has not issued any order
         preventing or suspending the use of any Preliminary Prospectus.


                  (b) The Registration Statement conforms, and the Prospectus
         and any further amendments or supplements to the Registration Statement
         or the Prospectus will, when they become effective or are filed with
         the Commission, as the case may be, conform in all respects to the
         requirements of the Securities Act and the Rules and Regulations and do
         not and will not, as of the applicable effective date (as to the
         Registration Statement and any amendment thereto) and as of the
         applicable filing date (as to the Prospectus and any amendment or
         supplement thereto) contain an untrue statement of a material fact or
         omit to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading; provided that
         no representation or warranty is made as to information contained in or
         omitted from the Registration Statement or the Prospectus in reliance
         upon and in conformity with written information furnished to the
         Company through the Representatives by or on behalf of any Underwriter
         specifically for inclusion therein.

                  (c) The documents incorporated by reference in the Prospectus,
         when they became effective or were filed with the Commission, as the
         case may be, conformed in


                                       2


         all material respects to the requirements of the Securities Act or the
         Exchange Act, as applicable, and the rules and regulations of the
         Commission thereunder, and none of such documents contained an untrue
         statement of a material fact or omitted to state a material fact
         required to be stated therein or necessary to make the statements
         therein not misleading; and any further documents so filed and
         incorporated by reference in the Prospectus prior to the completion of
         this offering, when such documents become effective or are filed with
         Commission, as the case may be, will conform in all material respects
         to the requirements of the Securities Act or the Exchange Act, as
         applicable, and the rules and regulations of the Commission thereunder
         and will not contain an untrue statement of a material fact or omit to
         state a material fact required to be stated therein or necessary to
         make the statements therein not misleading.

                  (d) The Company and each of its subsidiaries, Esperion AB and
         Esperion LUV Development, Inc. (each a "Subsidiary," and collectively,
         the "Subsidiaries"), have been duly incorporated and are validly
         existing as corporations in good standing under the laws of their
         respective jurisdictions of incorporation, are duly qualified to do
         business and are in good standing as foreign corporations in each
         jurisdiction in which their respective ownership or lease of property
         or the conduct of their respective businesses requires such
         qualification (except where the failure to be so qualified or in good
         standing would not have, individually or in the aggregate, a material
         adverse effect on the prospects, financial condition, stockholders'
         equity or results of operations of the Company and its Subsidiaries
         taken as a whole (a "Material Adverse Effect")), and have all power and
         authority necessary to own or hold their respective properties and to
         conduct the businesses in which they are engaged; and none of the
         Subsidiaries is a "significant subsidiary", as such term is defined in
         Rule 405 of the Rules and Regulations.

                  (e) The Company has an authorized capitalization as set forth
         in the Prospectus, and all of the issued shares of capital stock of the
         Company have been duly and validly authorized and issued, are fully
         paid and non-assessable and conform to the description thereof
         contained in the Prospectus; and all of the issued shares of capital
         stock of each Subsidiary have been duly and validly authorized and
         issued and are fully paid and non-assessable and are owned directly or
         indirectly by the Company, free and clear of all liens, encumbrances,
         equities or claims.

                  (f) The unissued shares of the Stock to be issued and sold by
         the Company to the Underwriters hereunder have been duly and validly
         authorized and, when issued and delivered against payment therefor as
         provided herein, will be duly and validly issued, fully paid and
         non-assessable; and the Stock will conform to the description thereof
         incorporated by reference in the Prospectus.


                  (g) The Rights Agreement, as amended on November 26, 2002 and
         July 29, 2003, by and between the Company and StockTrans, Inc. (the
         "Rights Agreement") has been duly authorized, executed and delivered
         and is enforceable against the Company in accordance with its terms. No
         Distribution Date (as defined in the Rights Agreement) has occurred,
         and no event or series of related events has occurred that, with lapse
         of time, would result in the




                                       3


         occurrence of a Distribution Date. The Rights Agreement conforms to the
         descriptions thereof incorporated by reference into the Prospectus.

                  (h) This Agreement has been duly authorized, executed and
         delivered by the Company.

                  (i) The execution, delivery and performance of this Agreement
         by the Company and the consummation of the transactions contemplated
         hereby will not conflict with or result in a material breach or
         violation of any of the terms or provisions of, or constitute a default
         under, any indenture, mortgage, deed of trust, loan agreement or other
         agreement or instrument to which the Company or any of its Subsidiaries
         is a party or by which the Company or any of its Subsidiaries is bound
         or to which any of the property or assets of the Company or any of its
         Subsidiaries is subject, nor will such actions result in any violation
         of the provisions of the charter or by-laws of the Company or any of
         its Subsidiaries or any statute or any order, rule or regulation of any
         court or governmental agency or body having jurisdiction over the
         Company or any of its Subsidiaries or any of their properties or
         assets; and except for the registration of the Stock under the
         Securities Act and such consents, approvals, authorizations,
         registrations or qualifications as may be required under the Exchange
         Act and applicable state securities laws in connection with the
         purchase and distribution of the Stock by the Underwriters, no consent,
         approval, authorization or order of, or filing or registration with,
         any such court or governmental agency or body is required for the
         execution, delivery and performance of this Agreement by the Company
         and the consummation of the transactions contemplated hereby.

                  (j) There are no contracts, agreements or understandings
         between the Company and any person granting such person the right
         (other than rights which have been satisfied) to require the Company to
         file a registration statement under the Securities Act with respect to
         any securities of the Company owned or to be owned by such person or to
         require the Company to include such securities in the securities
         registered pursuant to the Registration Statement or in any securities
         being registered pursuant to any other registration statement filed by
         the Company under the Securities Act.

                  (k) Except as described in the Prospectus, the Company has not
         sold or issued any shares of Common Stock during the six-month period
         preceding the date of the Prospectus, including any sales pursuant to
         Rule 144A under, or Regulations D or S of, the Securities Act, other
         than shares issued pursuant to employee benefit plans, qualified stock
         options plans or other employee compensation plans or pursuant to
         outstanding options, rights or warrants.

                  (l) Neither the Company nor any of its Subsidiaries has
         sustained, since the date of the latest audited financial statements
         included or incorporated by reference in the Prospectus, any material
         loss or interference with its business from fire, explosion, flood or
         other calamity, whether or not covered by insurance, or from any labor
         dispute or court or governmental action, order or decree, otherwise
         than as set forth or contemplated in the Prospectus; and, since such
         date, there has not been any material change in the capital stock or
         long-term debt of the Company or any of its Subsidiaries or any
         material adverse



                                       4


         change, or any development involving a prospective material adverse
         change, in or affecting the prospects, financial position,
         stockholders' equity or results of operations of the Company and its
         Subsidiaries taken as a whole, otherwise than as set forth or
         contemplated in the Prospectus.


                  (m) The financial statements (including the related notes and
         supporting schedules) filed as part of the Registration Statement or
         included or incorporated by reference in the Prospectus present fairly
         in all material respects the financial condition and results of
         operations of the Company and its consolidated subsidiaries, at the
         dates and for the periods indicated, in conformity with generally
         accepted accounting principles.


                  (n) PricewaterhouseCoopers LLP, who have certified certain
         financial statements of the Company since the first quarter of 2002,
         whose report appears in the Prospectus or is incorporated by reference
         therein and who have delivered the initial letter referred to in
         Section 9(h) hereof, are independent public accountants as required by
         the Securities Act and the Rules and Regulations. Arthur Anderson LLP,
         who had certified certain financial statements of the Company prior to
         the first quarter of 2002 and whose report is incorporated by reference
         therein were independent public accountants as required by the
         Securities Act and the Rules and Regulations.

                  (o) The Company and its Subsidiaries own no real property. The
         Company and its Subsidiaries have good and marketable title to all
         personal property owned by them, in each case free and clear of all
         liens, encumbrances and defects except such as are described in the
         Prospectus or reflected in an exhibit to a document incorporated by
         reference thereto or such as do not materially affect the value of such
         property and do not materially interfere with the use made and proposed
         to be made of such property by the Company and its Subsidiaries; and
         all real property and buildings held under lease by the Company and its
         Subsidiaries are held by them under valid, subsisting and enforceable
         leases, with such exceptions as are not material and do not interfere
         with the use made and proposed to be made of such property and
         buildings by the Company and its Subsidiaries.

                  (p) The Company and each of its Subsidiaries carry, or are
         covered by, insurance in such amounts and covering such risks as is
         adequate for the conduct of their respective businesses and the value
         of their respective properties and as is customary for companies
         engaged in similar businesses in similar industries; except that their
         directors' and officers' liability insurance was in an amount and
         covering such risk as is customary for companies engaged in similar
         businesses in similar industries at the time such insurance was
         obtained.

                  (q) To the Company's knowledge, (a) neither the Company nor
         any of its Subsidiaries is currently infringing or has infringed any
         patent, trademark or copyright rights of others, (b) all trade secrets,
         know how, technical processes and procedures developed and belonging to
         the Company (or any of its Subsidiaries) which are material to the
         business of the Company (or any of its Subsidiaries) as presently
         conducted and which have not been patented have been kept confidential,
         and (c) except as set forth in



                                       5


         the Prospectus, the Company and each of its Subsidiaries own or possess
         the right to use, free and clear of claims or rights of others, all
         patents, patent applications, trademarks, service marks, trade names,
         trademark registrations, service mark registrations, copyrights,
         licenses, trade secrets, customer lists, processes, and owned computer
         software required for their respective businesses as presently
         conducted or believe that they can acquire the same on reasonable
         terms. Except as set forth or contemplated in the Prospectus, neither
         the Company nor any of its Subsidiaries has received any notice of any
         claim of conflict with any such rights of others, which individually or
         in the aggregate, would have a Material Adverse Effect. To the
         Company's knowledge, neither the Company nor any of its Subsidiaries is
         using or has used any confidential information, trade secrets, or
         computer software (not licensed to the Company) of any former employer
         of any of its past or present employees.

                  (r) Except as set forth in the Prospectus, to the Company's
         and each of its Subsidiaries' knowledge, they have all material
         licenses, certificates, permits, consents, orders, approvals and
         authorizations from U.S. and foreign government authorities, including,
         without limitation, the United States Food and Drug Administration (the
         "FDA") and any agency of any foreign government and any other foreign
         regulatory authority exercising authority comparable to that of the FDA
         (including any non-governmental entity whose approval or authorization
         is required under foreign law comparable to that administered by the
         FDA), for its investigational products, as described in the Prospectus,
         that are necessary to the ownership of its property or to the conduct
         of its business in the manner and to the extent now conducted.


                  (s) There are no legal or governmental proceedings pending to
         which the Company or any of its Subsidiaries is a party or of which any
         property or assets of the Company or any of its Subsidiaries is the
         subject which, if determined adversely to the Company or any of its
         Subsidiaries, might have a Material Adverse Effect; and to the best of
         the Company's knowledge, no such proceedings are threatened or
         contemplated by governmental authorities or threatened by others.

                  (t) The conditions for use of Form S-3, as set forth in the
         General Instructions thereto, have been satisfied.

                  (u) There are no contracts or other documents which are
         required to be described in the Prospectus or filed as exhibits to the
         Registration Statement or documents incorporated by reference into the
         Registration Statement by the Securities Act or by the Rules and
         Regulations which have not been described in the Prospectus or filed as
         exhibits to the Registration Statement or incorporated therein by
         reference as permitted by the Rules and Regulations.



                                       6


                  (v) No relationship, direct or indirect, exists between or
         among the Company on the one hand and the directors, officers,
         stockholders, customers or suppliers of the Company on the other hand,
         which is required to be described or incorporated by reference in the
         Prospectus, which is not so described.

                  (w) No labor disturbance by the employees of the Company
         exists or, to the knowledge of the Company, is imminent which might be
         expected to have a Material Adverse Effect.

                  (x) The Company is in compliance in all material respects with
         all presently applicable provisions of the Employee Retirement Income
         Security Act of 1974, as amended, including the regulations and
         published interpretations thereunder ("ERISA"), except where such
         non-compliance would not have a Material Adverse Effect; no "reportable
         event" (as defined in ERISA) has occurred with respect to any "pension
         plan" (as defined in ERISA) to which the Company contributes or which
         the Company maintains that could have a Material Adverse Effect; the
         Company has not incurred and does not expect to incur liability under
         (i) Title IV of ERISA with respect to termination of, or withdrawal
         from, any "pension plan" or (ii) Sections 412 or 4971 of the Internal
         Revenue Code of 1986, as amended, including the regulations and
         published interpretations thereunder (the "Code"); and each "pension
         plan" for which the Company would have any liability that is intended
         to be qualified under Section 401(a) of the Code is so qualified in all
         material respects and nothing has occurred, whether by action or by
         failure to act, which would cause the loss of such qualification,
         except where the loss of such qualification would not have a Material
         Adverse Effect.

                  (y) The Company has filed all federal, state and local income
         and franchise tax returns required to be filed through the date hereof
         and has paid all taxes due thereon, and no tax deficiency has been
         determined adversely to the Company or any of its Subsidiaries which
         has had (nor does the Company have any knowledge of any tax deficiency
         which, if determined adversely to the Company or any of its
         Subsidiaries, might have) a Material Adverse Effect.

                  (z) Since the date as of which information is given in the
         Prospectus through the date hereof, and except as may otherwise be
         disclosed in the Prospectus, the Company has not (i) issued or granted
         any securities, other than shares issued pursuant to employee benefit
         plans, qualified stock option plans or other employee compensation
         plans or pursuant to outstanding options, rights or warrants, (ii)
         incurred any liability or obligation, direct or contingent, other than
         liabilities and obligations which were incurred in the ordinary course
         of business, (iii) entered into any transaction not in the ordinary
         course of business or (iv) declared or paid any dividend on its capital
         stock.

                  (aa) The Company has established and maintains disclosure
         controls and procedures (as such term is defined in Rule 13a-14 under
         the Exchange Act), which (i) are designed to ensure that material
         information relating to the Company, including its Subsidiaries, is
         made known to the Company's principal executive officer and its
         principal financial officer by others within the Company, particularly
         during the periods in which the periodic reports required under the
         Exchange Act are being prepared;



                                       7


         (ii) have been evaluated for effectiveness as of a date within 90 days
         prior to the filing of the Company's most recent annual or quarterly
         report filed with the Commission; and (iii) have been designed to
         provide reasonable assurance of achieving their objectives and are
         effective at the reasonable assurance level.

                  (bb) Based on the evaluation of its disclosure controls and
         procedures, the Company is not aware of (i) any significant deficiency
         in the design or operation of internal controls which could adversely
         affect the Company's ability to record, process, summarize and report
         financial data or any material weaknesses in internal controls; or (ii)
         any fraud, whether or not material, that involves management or other
         employees who have a significant role in the Company's internal
         controls.

                  (cc) Since the date of the most recent evaluation of such
         disclosure controls and procedures, there have been no significant
         changes in internal controls or in other factors that could
         significantly affect internal controls, including any corrective
         actions with regard to significant deficiencies and material
         weaknesses.

                  (dd) The Company (i) makes and keeps materially accurate books
         and records, (ii) assures that access to its assets is permitted only
         in accordance with management's authorization and (iii) assures that
         the reported accountability for its assets is compared with existing
         assets at reasonable intervals.

                  (ee) Neither the Company nor any of its Subsidiaries (i) is in
         violation of its charter or by-laws, (ii) is in default in any material
         respect, and no event has occurred which, with notice or lapse of time
         or both, would constitute such a default, in the due performance or
         observance of any term, covenant or condition contained in any material
         indenture, mortgage, deed of trust, loan agreement or other agreement
         or instrument to which it is a party or by which it is bound or to
         which any of its properties or assets is subject or (iii) is in
         violation in any material respect of any law, ordinance, governmental
         rule, regulation or court decree to which it or its property or assets
         may be subject or has failed to obtain any material license, permit,
         certificate, franchise or other governmental authorization or permit
         necessary to the ownership of its property or to the conduct of its
         business.

                  (ff) Neither the Company nor any of its Subsidiaries, nor any
         director, officer, agent, employee or other person associated with or
         acting on behalf of the Company or any of its Subsidiaries, has used
         any corporate funds for any unlawful contribution, gift, entertainment
         or other unlawful expense relating to political activity; made any
         direct or indirect unlawful payment to any foreign or domestic
         government official or employee from corporate funds; violated or is in
         violation of any provision of the Foreign Corrupt Practices Act of
         1977; or made any bribe, rebate, payoff, influence payment, kickback or
         other unlawful payment.

                  (gg) There has been no storage, disposal, generation,
         manufacture, refinement, transportation, handling or treatment of toxic
         wastes, medical wastes, hazardous wastes or hazardous substances by the
         Company or any of its Subsidiaries (or, to the knowledge of the
         Company, any of their predecessors in interest) at, upon or from any of
         the property now or previously owned or leased by the Company or its
         Subsidiaries in



                                       8


         violation of any applicable law, ordinance, rule, regulation, order,
         judgment, decree or permit or which would require remedial action under
         any applicable law, ordinance, rule, regulation, order, judgment,
         decree or permit, except for any violation or remedial action which
         would not have, or could not be reasonably likely to have, singularly
         or in the aggregate with all such violations and remedial actions, a
         Material Adverse Effect; there has been no material spill, discharge,
         leak, emission, injection, escape, dumping or release of any kind onto
         such property or into the environment surrounding such property of any
         toxic wastes, medical wastes, solid wastes, hazardous wastes or
         hazardous substances due to or caused by the Company or any of its
         Subsidiaries or with respect to which the Company or any of its
         Subsidiaries have knowledge, except for any such spill, discharge,
         leak, emission, injection, escape, dumping or release which would not
         have or would not be reasonably likely to have, singularly or in the
         aggregate with all such spills, discharges, leaks, emissions,
         injections, escapes, dumpings and releases, a Material Adverse Effect;
         and the terms "hazardous wastes", "toxic wastes", "hazardous
         substances" and "medical wastes" shall have the meanings specified in
         any applicable local, state, federal and foreign laws or regulations
         with respect to environmental protection.

                  (hh) Neither the Company nor any Subsidiary is an "investment
         company" within the meaning of such term under the Investment Company
         Act of 1940 and the rules and regulations of the Commission thereunder.


                  (ii) Neither the Company nor any of its Subsidiaries, nor any
         director, officer, agent, employee or other person associated with or
         acting on behalf of the Company or any of its Subsidiaries has,
         directly or indirectly through another person, encouraged, taken any
         action designed to encourage, or participated in (i) the purchase or
         sale by Scott Sacane, Durus Capital Management, LLC or Durus Capital
         Management (NA) LLC or any of their affiliates (collectively, the
         "Sacane Group") of shares of Common Stock between November 12, 2002 and
         the date hereof or (ii) the failure of the Sacane Group to report any
         such purchases or sales prior to July 29, 2003 as required by the
         federal securities laws.


                  2. Representations, Warranties and Agreements of the Selling
Stockholders. Each Selling Stockholder severally and not jointly represents,
warrants and agrees that:

                  (a) The Selling Stockholder has, and immediately prior to the
         First Delivery Date (as defined in Section 5 hereof) the Selling
         Stockholder will have, on such date, good and valid title to the shares
         of Option Stock to be sold by the Selling Stockholder hereunder
         pursuant to Section 5 hereof, free and clear of all liens,
         encumbrances, equities or claims; and upon delivery of such shares of
         Option Stock and payment therefor pursuant hereto, good and valid title
         to such shares, free and clear of all liens, encumbrances, equities or
         claims, will pass to the several Underwriters.

                  (b) The Selling Stockholder has placed (or agreed to place) in
         custody under a custody agreement (the "Custody Agreement") with the
         Company, as custodian (the "Custodian"), for delivery under this
         Agreement, certificates in negotiable form (with signature guaranteed
         by a commercial bank or trust company having an office or correspondent
         in the United States or a member firm of the New York or American Stock
         Exchanges) representing the shares of Option Stock to be sold by the
         Selling Stockholder hereunder.

                  (c) The Selling Stockholder has duly and irrevocably executed
         and delivered a power of attorney (the "Power of Attorney") appointing
         the Custodian and one or more other persons, as attorneys-in-fact, with
         full power of substitution, and with full authority (exercisable by any
         one or more of them) to execute and deliver this Agreement on such
         Selling Stockholder's behalf and to take such other action as may be
         necessary or desirable



                                       9


         to carry out the provisions hereof on behalf of the Selling
         Stockholder, in accordance with the applicable Custody Agreement and
         the applicable Power of Attorney.

                  (d) The Selling Stockholder has full right, power and
         authority to enter into this Agreement, the Power of Attorney and the
         Custody Agreement; the execution, delivery and performance of this
         Agreement, the Power of Attorney and the Custody Agreement by the
         Selling Stockholder and the consummation by the Selling Stockholder of
         the transactions contemplated hereby and thereby will not conflict with
         or result in a breach or violation of any of the terms or provisions
         of, or constitute a default under, any indenture, mortgage, deed of
         trust, loan agreement or other agreement or instrument to which the
         Selling Stockholder is a party or by which the Selling Stockholder is
         bound or to which any of the property or assets of the Selling
         Stockholder is subject, nor will such actions result in any violation
         of any statute or any order, rule or regulation of any court or
         governmental agency or body having jurisdiction over the Selling
         Stockholder or the property or assets of the Selling Stockholder; and,
         except for the registration of the Option Stock under the Securities
         Act and such consents, approvals, authorizations, registrations or
         qualifications as may be required under the Securities Act and
         applicable state securities laws in connection with the purchase and
         distribution of the Option Stock by the Underwriters, no consent,
         approval, authorization or order of, or filing or registration with,
         any such court or governmental agency or body is required for the
         execution, delivery and performance of this Agreement, the Power of
         Attorney or the Custody Agreement by the Selling Stockholder and the
         consummation by the Selling Stockholder of the transactions
         contemplated hereby and thereby.


                  (e) The Registration Statement and the Prospectus and any
         further amendments or supplements to the Registration Statement or the
         Prospectus will not, when they become effective or are filed with the
         Commission, as the case may be, and as of the applicable effective date
         (as to the Registration Statement and any amendment thereto) and as of
         the applicable filing date (as to the Prospectus and any amendment or
         supplement thereto) contain an untrue statement of a material fact or
         omit to state a material fact required to be stated therein or
         necessary to make the statements therein not misleading with respect to
         such Selling Stockholders; provided that no representation or warranty
         is made as to information contained in or omitted from the Registration
         Statement or the Prospectus in reliance upon and in conformity with
         written information furnished to the Company by or on behalf of any
         Underwriter specifically for inclusion therein; provided, further, that
         such Selling Stockholder shall have no liability under this Section
         2(e) except to the extent that the untrue statement or omission is or
         will be made in reliance upon and in conformity with information
         concerning such Selling Stockholder furnished to the Company through
         the Representatives in writing by or on behalf of such Selling
         Stockholder specifically for inclusion therein.


                  (f) The Selling Stockholder has no knowledge that the
         representations and warranties of the Company contained in Section 1
         hereof are not materially true and correct, is familiar with the
         Registration Statement and the Prospectus (as amended or supplemented)
         and has no knowledge of any material fact, condition or information not
         disclosed in the Registration Statement, as of the effective date, or
         the Prospectus (or any amendment or supplement thereto), as of the
         applicable filing date, which has adversely affected or is reasonably
         likely to adversely affect the business of the Company and is not



                                       10


         prompted to sell shares of Common Stock by any information concerning
         the Company which is not set forth in the Registration Statement and
         the Prospectus.

                  (g) The Selling Stockholder has not taken and will not take,
         directly or indirectly, any action which is designed to or which has
         constituted or which might reasonably be expected to cause or result in
         the stabilization or manipulation of the price of any security of the
         Company to facilitate the sale or resale of the shares of the Stock.


                  3. Purchase of the Stock by the Underwriters. On the basis of
the representations and warranties contained in, and subject to the terms and
conditions of, this Agreement, the Company agrees to sell 4,000,000 shares of
the Firm Stock to the several Underwriters and each of the Underwriters,
severally and not jointly, agrees to purchase the number of shares of the Firm
Stock set opposite that Underwriter's name in Schedule 1 hereto. The respective
purchase obligations of the Underwriters with respect to the Firm Stock
shall be rounded among the Underwriters to avoid fractional shares, as the
Representatives may determine, and in accordance with the Delaware General
Corporation Law and the Company's By-Laws and Certificate of Incorporation.



                  In addition, the Company grants to the Underwriters an option
to purchase up to 434,000 shares of Option Stock and the Selling Stockholders
grant to the Underwriters an option to purchase up to 166,000 shares of Option
Stock, each Selling Stockholder selling up to the amount set forth opposite such
Selling Stockholders name in Schedule 2 hereto and in proportion to the
respective amounts set forth in Schedule 2. To the extent that the Underwriters
purchase fewer then the total number of shares of Option Stock offered
hereunder, the Underwriters shall purchase a pro rata number of shares of Option
Stock from each of the Company and each Selling Stockholder based on the total
number of shares of Option Stock that they each have agreed to sell pursuant to
the option granted in this Section 3. Such option is granted for the purpose of
covering over-allotments in the sale of Firm Stock and is exercisable as
provided in Section 5 hereof. Shares of Option Stock shall be purchased
severally for the account of the Underwriters in proportion to the number of
shares of Firm Stock set forth opposite the name of such Underwriters in
Schedule 1 hereto. The respective purchase obligations of each Underwriter with
respect to the Option Stock shall be adjusted by the Representatives so that no
Underwriter shall be obligated to purchase Option Stock other than in 100 share
increments.


                  The Company agrees, in the event of a default or a failure on
the part of the Selling Stockholders to deliver any or all of the shares of
Option Stock, in addition to any other remedies which may be available to the
Underwriters under this Agreement, to issue and sell to the Underwriters,
subject to the terms and conditions of this Agreement, in addition to the
4,000,000 shares of Firm Stock and 434,000 shares of Option Stock pursuant to
this Section 3, up to an additional 166,000 shares of Option Stock.

                  The price of both the Firm Stock and any Option Stock shall be
$_________ per share.

                  The Company and the Selling Stockholders shall not be
obligated to deliver any of the Stock to be delivered on any Delivery Date (as
hereinafter defined), as the case may be, except upon payment for all the Stock
to be purchased on such Delivery Date as provided herein.



                                       11


                  4. Offering of Stock by the Underwriters.


                  Upon authorization by the Representatives of the release of
the Firm Stock, the several Underwriters propose to offer the Firm Stock for
sale upon the terms and conditions set forth in the Prospectus.



                  5. Delivery of and Payment for the Stock. Delivery of and
payment for the Firm Stock shall be made at the office of Morgan Lewis & Bockius
LLP, 1111 Pennsylvania Avenue, NW, Washington, DC 20004, at 10:00 A.M., New York
City time, on the third full business day following the date of this Agreement
or at such other date or place as shall be determined by agreement between the
Representatives and the Company. This date and time are sometimes referred to as
the "First Delivery Date." On the First Delivery Date, the Company shall deliver
or cause to be delivered certificates representing the Firm Stock to the
Representatives for the account of each Underwriter against payment to or upon
the order of the Company of the purchase price by wire transfer in immediately
available funds. Time shall be of the essence, and delivery at the time and
place specified pursuant to this Agreement is a further condition of the
obligation of each Underwriter hereunder. Upon delivery, the Firm Stock shall be
registered in such names and in such denominations as the Representatives shall
request in writing not less than two full business days prior to the First
Delivery Date. For the purpose of expediting the checking and packaging of the
certificates for the Firm Stock, the Company shall make the certificates
representing the Firm Stock available for inspection by the Representatives in
New York, New York, not later than 2:00 P.M., New York City time, on the
business day prior to the First Delivery Date.



                  The option granted in Section 3 will expire 30 days after the
date of this Agreement and may be exercised in whole or in part from time to
time by written notice being given to the Company and the Selling Stockholders
by the Representatives. Such notice shall set forth the aggregate number of
shares of Option Stock as to which the option is being exercised, the names in
which the shares of Option Stock are to be registered, the denominations in
which the shares of Option Stock are to be issued and the date and time, as
determined by the Representatives, when the shares of Option Stock are to be
delivered; provided, however, that this date and time shall not be earlier than
the First Delivery Date nor earlier than the second business day after the date
on which the option shall have been exercised nor later than the fifth business
day after the date on which the option shall have been exercised. The date and
time the shares of Option Stock are delivered are sometimes referred to as a
"Second Delivery Date" and the First Delivery Date and any Second Delivery Date
are sometimes each referred to as a "Delivery Date".



                  Delivery of and payment for the Option Stock shall be made at
the place specified in the first sentence of the first paragraph of this Section
5 (or at such other place as shall be determined by agreement among the
Representatives, the Company and the Selling Stockholders) at 10:00 A.M., New
York City time, on such Second Delivery Date. On such Second Delivery Date, the
Company, and the Custodian, on behalf of each of the Selling Stockholders, shall
deliver or cause to be delivered the certificates representing the Option Stock
to the Representatives for the account of each Underwriter against payment to or
upon the order of the Company and each such Selling Stockholder by wire transfer
in immediately available funds of the respective portion of the purchase price
payable to the Company and such Selling Stockholder. Time shall be of the
essence, and delivery at the time and place specified pursuant to this Agreement
is a




                                       12


further condition of the obligation of each Underwriter hereunder. Upon
delivery, the Option Stock shall be registered in such names and in such
denominations as the Representatives shall request in the aforesaid written
notice. For the purpose of expediting the checking and packaging of the
certificates for the Option Stock, the Company shall make the certificates
representing the Option Stock available for inspection by the Representatives in
New York, New York, not later than 2:00 P.M., New York City time, on the
business day prior to such Second Delivery Date.


                  6. Further Agreements of the Company. The Company agrees:


                  (a) To prepare the Prospectus in a form approved by the
         Underwriters and to file such Prospectus pursuant to Rule 424(b) under
         the Securities Act not later than Commission's close of business on the
         second business day following the execution and delivery of this
         Agreement or, if applicable, such earlier time as may be required by
         Rule 430A(a)(3) under the Securities Act; to make no further amendment
         or any supplement to the Registration Statement or to the Prospectus
         prior to the last Delivery Date except as permitted herein; to advise
         the Representatives, promptly after it receives notice thereof, of the
         time when any amendment to the Registration Statement has been filed or
         becomes effective or any supplement to the Prospectus or any amended
         Prospectus has been filed and to furnish the Representatives with
         copies thereof; to file promptly all reports and any definitive proxy
         or information statements required to be filed by the Company with the
         Commission pursuant to Section 13(a), 13(c), 14 or 15(d) of the
         Exchange Act subsequent to the date of the Prospectus and for so long
         as the delivery of a prospectus is required in connection with the
         offering or sale of the Stock; to advise the Representatives, promptly
         after it receives notice thereof, of the issuance by the Commission of
         any stop order or of any order preventing or suspending the use of any
         Preliminary Prospectus or the Prospectus, of the suspension of the
         qualification of the Stock for offering or sale in any jurisdiction, of
         the initiation or threatening of any proceeding for any such purpose,
         or of any request by the Commission for the amending or supplementing
         of the Registration Statement or the Prospectus or for additional
         information; and, in the event of the issuance of any stop order or of
         any order preventing or suspending the use of any Preliminary
         Prospectus or the Prospectus or suspending any such qualification, to
         use promptly its best efforts to obtain its withdrawal;

                  (b) To furnish promptly to each of the Representatives and to
         counsel for the Underwriters a signed copy of the Registration
         Statement as originally filed with the Commission, and each amendment
         thereto filed with the Commission, including all consents and exhibits
         filed therewith;


                  (c) To deliver promptly to the Representatives such number of
         the following documents as the Representatives shall reasonably
         request: (i) conformed copies of the Registration Statement as
         originally filed with the Commission and each amendment thereto (in
         each case excluding exhibits other than this Agreement and the
         computation of per share earnings and excluding documents incorporated
         by reference into the Registration Statement), and (ii) each
         Preliminary Prospectus, the Prospectus and any amended or supplemented
         Prospectus; and, if the delivery of a prospectus is required at any
         time after the Effective Time in connection with the offering or sale
         of the Stock or




                                       13



         any other securities relating thereto and if at such time any events
         shall have occurred as a result of which the Prospectus as then amended
         or supplemented would include an untrue statement of a material fact or
         omit to state any material fact necessary in order to make the
         statements therein, in the light of the circumstances under which they
         were made when such Prospectus is delivered, not misleading, or, if for
         any other reason it shall be necessary to amend or supplement the
         Prospectus or to file under the Exchange Act any document incorporated
         by reference in the Prospectus in order to comply with the Securities
         Act or the Exchange Act, to notify the Representatives and, upon their
         request, to file such document and to prepare and furnish without
         charge to each Underwriter and to any dealer in securities as many
         copies as the Representatives may from time to time reasonably request
         of an amended or supplemented Prospectus which will correct such
         statement or omission or effect such compliance;



                  (d) To file promptly with the Commission any amendment to the
         Registration Statement or the Prospectus or any supplement to the
         Prospectus that may, in the judgment of the Company or the
         Representatives, be required by the Securities Act or requested by the
         Commission;



                  (e) Prior to filing with the Commission any amendment to the
         Registration Statement or supplement to the Prospectus, any document
         incorporated by reference in the Prospectus or any Prospectus pursuant
         to Rule 424 of the Rules and Regulations, to furnish a copy thereof to
         the Representatives and counsel for the Underwriters and obtain the
         consent of the Representatives to the filing, which consent shall not
         be unreasonably withheld;



                  (f) As soon as practicable after the Effective Date (it being
         understood that the Company shall have until at least 410 days after
         the end of the Company's current fiscal quarter), to make generally
         available to the Company's security holders and to deliver to the
         Representatives an earnings statement of the Company and its
         Subsidiaries (which need not be audited) complying with Section 11(a)
         of the Securities Act and the Rules and Regulations (including, at the
         option of the Company, Rule 158);



                  (g) Promptly from time to time to take such action as the
         Representatives may reasonably request to qualify the Stock for
         offering and sale under the securities laws of such jurisdictions as
         the Representatives may reasonably request and to comply with such laws
         so as to permit the continuance of sales and dealings therein in such
         jurisdictions for as long as may be necessary to complete the
         distribution of the Stock; provided that in connection therewith the
         Company shall not be required to qualify as a foreign corporation or to
         file a general consent to service of process in any jurisdiction or to
         take any similar actions;


                  (h) For a period of 90 days from the date of the Prospectus,
         not to, directly or indirectly, (1) offer for sale, sell, pledge or
         otherwise dispose of (or enter into any transaction or device which is
         designed to, or could be expected to, result in the disposition by any
         person at any time in the future of) any shares of Common Stock or
         securities convertible into or exchangeable for Common Stock (other
         than the Stock and shares issued pursuant to employee benefit plans,
         qualified stock option plans or other



                                       14



         employee compensation plans existing on the date hereof or pursuant to
         currently outstanding options, warrants or rights), or sell or grant
         options, rights or warrants with respect to any shares of Common Stock
         or securities convertible into or exchangeable for Common Stock (other
         than the grant of options pursuant to option plans existing on the date
         hereof), or (2) enter into any swap or other derivatives transaction
         that transfers to another, in whole or in part, any of the economic
         benefits or risks of ownership of such shares of Common Stock, whether
         any such transaction described in clause (1) or (2) above is to be
         settled by delivery of Common Stock or other securities, in cash or
         otherwise, in each case without the prior written consent of Lehman
         Brothers Inc., on behalf of the Underwriters, which consent shall not
         be unreasonably withheld;


                  (i) Prior to the Effective Date, to apply for the inclusion of
         the Stock on the Nasdaq National Market System and to use its best
         efforts to complete that listing, subject only to official notice of
         issuance, prior to the First Delivery Date;

                  (j) To apply the net proceeds from the sale of the Stock being
         sold by the Company as set forth in the Prospectus; and

                  (k) To take such steps as shall be reasonably necessary to
         prevent the Company and any Subsidiary from becoming an "investment
         company" within the meaning of such term under the Investment Company
         Act of 1940 and the rules and regulations of the Commission thereunder.

                  7. Further Agreements of the Selling Stockholders.  Each of
the Selling Stockholders, severally and not jointly, agree:

                  (a) That the Option Stock to be sold by the Selling
         Stockholder hereunder, which is represented by the certificates held in
         custody for the Selling Stockholder, is subject to the interest of the
         Underwriters and the other Selling Stockholders thereunder, that the
         arrangements made by the Selling Stockholder for such custody are to
         that extent irrevocable, and that the obligations of the Selling
         Stockholder hereunder shall not be terminated by any act of the Selling
         Stockholder, by operation of law, by the death or incapacity of any
         individual Selling Stockholder or the occurrence of any other event.


                  (b) To deliver to the Representatives prior to the First
         Delivery Date a properly completed and executed United States Treasury
         Department Form W-8 (if the Selling Stockholder is a non-United States
         person) or Form W-9 (if the Selling Stockholder is a United States
         person.)



                  8. Expenses. The Company agrees to pay (a) the costs incident
to the authorization, issuance, sale and delivery of the Stock and any taxes
payable in that connection; provided, that any and all capital gain or income
taxes attributable to the sale of the Stock by any Selling Stockholder shall
remain the sole responsibility of such Selling Stockholder; (b) the costs
incident to the preparation, printing and filing under the Securities Act of the
Registration Statement and any amendments and exhibits thereto; (c) the costs of
distributing the Registration Statement as originally filed and each amendment
thereto and any post-effective amendments thereof (including, in each case,
exhibits), any Preliminary Prospectus, the Prospectus and any amendment or
supplement to the Prospectus or any document incorporated by reference therein,




                                       15


all as provided in this Agreement; (d) the costs of distributing this Agreement
among the Underwriters, and any other necessary related documents in connection
with the offering, purchase, sale and delivery of the stock; (e) the costs of
delivering and distributing the Custody Agreements and the Powers of Attorney;
(f) the filing fees incident to securing any required review by the National
Association of Securities Dealers, Inc. of the terms of sale of the Stock; (g)
any applicable listing or other necessary fees; (h) the fees and expenses of
qualifying the Stock under the securities laws of the several jurisdictions as
provided in Section 6(h); and (i) all other costs and expenses incident to the
performance of the obligations of the Company under this Agreement; provided
that, except as provided in this Section 8 and in Section 13 the Underwriters
shall pay their own costs and expenses, including the costs and expenses of
their counsel, their own costs and expenses associated with the "road show," any
transfer taxes on the Stock which they may sell and the expenses of advertising
any offering of the Stock made by the Underwriters provided, that the Company
and the Underwriters will share equally the costs and expenses of the airplane
used in the road show.

                  Each of the Selling Stockholders severally and not jointly
agrees with each Underwriter to pay all reasonable fees and expenses incident to
the performance of its obligations under this Agreement that are not otherwise
specifically provided herein, including but not limited to (i) fees and expenses
of counsel and advisors to the Selling Stockholder and (ii) commission, wiring
fees and taxes incident to the sale and delivery of the Option Stock to be sold
by the Selling Stockholder to the Underwriters hereunder. This paragraph shall
not affect or modify any separate, valid agreement relating to the allocation of
payment of expenses between the Company on the one hand and any Selling
Stockholder on the other hand.


                  9. Conditions of Underwriters' Obligations. The respective
obligations of the Underwriters hereunder are subject to the accuracy, when made
and on each Delivery Date, of the representations and warranties of the Company
and the Selling Stockholders contained herein, to the performance by the Company
and the Selling Stockholders of its and their obligations hereunder, and to each
of the following additional terms and conditions:

                  (a) The Prospectus shall have been timely filed with the
         Commission in accordance with Section 6(a); no stop order suspending
         the effectiveness of the Registration Statement or any part thereof
         shall have been issued and no proceeding for that purpose shall have
         been initiated or threatened by the Commission; and any request of the
         Commission for inclusion of additional information in the Registration
         Statement or the Prospectus or otherwise shall have been complied with.

                  (b) No Underwriter shall have discovered and disclosed to the
         Company on or prior to such Delivery Date that the Registration
         Statement or the Prospectus or any amendment or supplement thereto
         contains an untrue statement of a fact which, in the reasonable opinion
         of Bingham McCutchen LLP, counsel for the Underwriters, is material or
         omits to state a fact which, in the opinion of such counsel, is
         material and is required to be stated therein or is necessary to make
         the statements therein not misleading.

                  (c) All corporate proceedings and other legal matters incident
         to the authorization, form and validity of this Agreement, the Custody
         Agreements, the Powers of Attorney, the Stock, the Registration
         Statement and the Prospectus, and all other legal



                                       16


         matters relating to this Agreement and the transactions contemplated
         hereby shall be reasonably satisfactory in all material respects to
         counsel for the Underwriters, and the Company and each of the Selling
         Stockholders shall have furnished to such counsel all documents and
         information that they may reasonably request to enable them to pass
         upon such matters.


                  (d) Morgan, Lewis & Bockius LLP shall have furnished to the
         Representatives its written opinion, as counsel to the Company,
         addressed to the Representatives and dated such Delivery Date, in form
         and substance reasonably satisfactory to the Underwriters, to the
         effect that:


                           (i) The Company and each of its Subsidiaries have
                  been duly incorporated and are validly existing as
                  corporations in good standing under the laws of their
                  respective jurisdictions of incorporation, are duly qualified
                  to do business and are in good standing as foreign
                  corporations in each jurisdiction in which their respective
                  ownership or lease of property or the conduct of their
                  respective businesses requires such qualification (except
                  where the failure to be so qualified or in good standing would
                  not have, individually or in the aggregate, a Material Adverse
                  Effect) and have all power and authority necessary to own or
                  hold their respective properties and conduct the businesses in
                  which they are engaged;

                           (ii) The Company has an authorized capitalization as
                  set forth in the Prospectus, and all of the issued shares of
                  capital stock of the Company (including the shares of Stock
                  being delivered on such Delivery Date) have been duly and
                  validly authorized and issued, are fully paid and
                  non-assessable and conform to the description thereof
                  contained in the Prospectus; and all of the issued shares of
                  capital stock of each Subsidiary have been duly and validly
                  authorized and issued and are fully paid, non-assessable and
                  are owned directly or indirectly by the Company, free and
                  clear of all liens, encumbrances, equities or claims;

                           (iii) There are no preemptive or other rights to
                  subscribe for or to purchase, nor any restriction upon the
                  voting or transfer of, any shares of the Stock pursuant to the
                  Company's charter or by-laws or any agreement or other
                  instrument known to such counsel;

                           (iv) To such counsel's knowledge and other than as
                  set forth in the Prospectus, there are no legal or
                  governmental proceedings pending to which the Company or any
                  of its Subsidiaries is a party or of which any property or
                  assets of the Company or any of its Subsidiaries is the
                  subject which, if determined adversely to the Company or any
                  of its Subsidiaries, might have a Material Adverse Effect;
                  and, to such counsel's knowledge, no such proceedings are
                  threatened or contemplated by governmental authorities or
                  threatened by others;

                           (v) The Registration Statement was declared effective
                  under the Securities Act as of the date and time specified in
                  such opinion, the Prospectus was filed with the Commission
                  pursuant to the subparagraph of Rule 424(b) of the Rules and
                  Regulations specified in such opinion on the date specified
                  therein and,



                                       17


                  to the knowledge of such counsel, no stop order suspending the
                  effectiveness of the Registration Statement has been issued
                  and no proceeding for that purpose is pending or threatened by
                  the Commission;

                           (vi) The Registration Statement and the Prospectus
                  and any further amendments or supplements thereto made by the
                  Company prior to such Delivery Date (other than the financial
                  statements and notes thereto and related schedules,
                  information about internal control over financial reporting
                  and other financial data included therein, as to which such
                  counsel need express no opinion) comply as to form in all
                  material respects with the requirements of the Securities Act
                  and the Rules and Regulations, the documents incorporated by
                  reference in the Prospectus and any further amendment or
                  supplement to any such incorporated document made by the
                  Company prior to such Delivery Date (other than the financial
                  statements and notes thereto and related schedules,
                  information about internal control over financial reporting
                  and other financial data included therein, as to which such
                  counsel need express no opinion), when they became effective
                  or were filed with the Commission, as the case may be,
                  complied as to form in all material respects with the
                  requirements of the Securities Act or the Exchange Act, as
                  applicable, and the rules and regulations of the Commission
                  thereunder;

                           (vii) To such counsel's knowledge, there are no
                  contracts or other documents which are required to be
                  described in the Prospectus or filed as exhibits to the
                  Registration Statement or incorporated by reference into the
                  Registration Statement by the Securities Act or by the Rules
                  and Regulations which have not been described or filed as
                  exhibits to the Registration Statement or incorporated therein
                  by reference as permitted by the Rules and Regulations;

                           (viii) This Agreement has been duly authorized,
                  executed and delivered by the Company;


                           (ix) The issue and sale of the shares of Stock being
                  delivered on such Delivery Date by the Company and the
                  compliance by the Company with all of the provisions of this
                  Agreement and the consummation of the transactions
                  contemplated hereby will not conflict with or result in a
                  breach or violation of any of the terms or provisions of, or
                  constitute a default under, any indenture, mortgage, deed of
                  trust, loan agreement or other agreement or instrument to
                  which the Company or any of its Subsidiaries is a party or by
                  which the Company or any of its Subsidiaries is bound or to
                  which any of the property or assets of the Company or any of
                  its Subsidiaries is subject and which is filed as an exhibit
                  to the Company's reports filed under the Exchange Act, nor
                  will such actions result in any violation of the provisions of
                  the charter or by-laws of the Company or any of its
                  Subsidiaries or any statute or any order, rule or regulation
                  known to such counsel of any court or governmental agency or
                  body having jurisdiction over the Company or any of its
                  Subsidiaries or any of their properties or assets; and, except
                  for the registration of the Stock under the Securities Act and
                  such consents, approvals, authorizations, registrations or
                  qualifications as may be required under the Exchange Act and
                  applicable state




                                       18


                  securities laws in connection with the purchase and
                  distribution of the Stock by the Underwriters, no consent,
                  approval, authorization or order of, or filing or registration
                  with, any such court or governmental agency or body is
                  required for the execution, delivery and performance of this
                  Agreement by the Company and the consummation of the
                  transactions contemplated hereby; and

                           (x) To such counsel's knowledge, there are no
                  contracts, agreements or understandings between the Company
                  and any person granting such person the right (other than
                  rights which have been waived or satisfied) to require the
                  Company to file a registration statement under the Securities
                  Act with respect to any securities of the Company owned or to
                  be owned by such person or to require the Company to include
                  such securities in the securities registered pursuant to the
                  Registration Statement or in any securities being registered
                  pursuant to any other registration statement filed by the
                  Company under the Securities Act.


         In rendering such opinion, such counsel may state that its opinion is
         limited to matters governed by the Federal laws of the United States of
         America, the laws of the District of Columbia and the General
         Corporation Law of the State of Delaware and that such counsel is not
         admitted in the State of Delaware. Such counsel shall also have
         furnished to the Representatives a written statement, addressed to the
         Underwriters and dated such Delivery Date, in form and substance
         satisfactory to the Representatives, to the effect that (x) such
         counsel has acted as counsel to the Company on a regular basis, has
         acted as counsel to the Company in connection with previous financing
         transactions and has acted as counsel to the Company in connection with
         the preparation of the Registration Statement, and (y) based on the
         foregoing, no facts have come to the attention of such counsel which
         lead it to believe that (I) the Registration Statement (other than the
         financial statements and notes thereto and related schedules,
         information about internal control over financial reporting and other
         financial data included therein, as to which such counsel need express
         no opinion), as of the Effective Date, contained any untrue statement
         of a material fact or omitted to state a material fact required to be
         stated therein or necessary in order to make the statements therein not
         misleading, or that the Prospectus (other than the financial statements
         and notes thereto and related schedules, information about internal
         control over financial reporting and other financial data included
         therein, as to which such counsel need express no opinion) contains any
         untrue statement of a material fact or omits to state a material fact
         required to be stated therein or necessary in order to make the
         statements therein, in light of the circumstances under which they were
         made, not misleading or (II) any document incorporated by reference in
         the Prospectus or any further amendment or supplement to any such
         incorporated document made by the Company prior to such Delivery Date
         (other than the financial statements and notes thereto and related
         schedules, information about internal control over financial reporting
         and other financial data included therein, as to which such counsel
         need express no opinion), when they became effective or were filed with
         the Commission, as the case may be, contained, in the case of a
         registration statement which became effective under the Securities Act,
         any untrue statement of a material fact or omitted to state a material
         fact required to be stated therein or necessary in order to make the
         statements therein not misleading, or, in the case of other documents
         which were filed under the Exchange Act with the Commission, an untrue
         statement of a material fact or




                                       19

         omitted to state a material fact necessary in order to make the
         statements therein, in light of the circumstances under which they were
         made, not misleading. The foregoing opinion and statement may be
         qualified by a statement to the effect that such counsel does not
         assume any responsibility for the accuracy, completeness or fairness of
         the statements contained in the Registration Statement or the
         Prospectus.


                  (e) Pennie & Edmonds LLP shall have furnished to the
         Representatives its written opinion, as intellectual property counsel
         to the Company, addressed to the Underwriters and dated such Delivery
         Date, substantially in the form attached hereto as Exhibit 1.

                  (f) Holland & Knight LLP shall have furnished to the
         Representatives its written opinion, as intellectual property counsel
         to the Company, addressed to the Underwriters and dated such Delivery
         Date, substantially in the form attached hereto as Exhibit 2.

                  (g) The Representatives shall have received from Bingham
         McCutchen LLP, counsel for the Underwriters, such opinion or opinions,
         dated such Delivery Date, with respect to the issuance and sale of the
         Stock, the Registration Statement, the Prospectus and other related
         matters as the Representatives may reasonably require, and the Company
         shall have furnished to such counsel such documents as they reasonably
         request for the purpose of enabling them to pass upon such matters.

                  (h) At the time of execution of this Agreement, the
         Representatives shall have received from PricewaterhouseCoopers LLP a
         letter, in form and substance satisfactory to the Representatives,
         addressed to the Underwriters and dated the date hereof (i) confirming
         that they are independent public accountants within the meaning of the
         Securities Act and are in compliance with the applicable requirements
         relating to the qualification of accountants under Rule 2-01 of
         Regulation S-X of the Commission, (ii) stating, as of the date hereof
         (or, with respect to matters involving changes or developments since
         the respective dates as of which specified financial information is
         given in the Prospectus, as of a date not more than five days prior to
         the date hereof), the conclusions and findings of such firm with
         respect to the financial information and other matters ordinarily
         covered by accountants' "comfort letters" to underwriters in connection
         with registered public offerings.

                  (i) At the time of execution of this Agreement, the
         Representatives shall have received from Timothy M. Mayleben, Chief
         Financial Officer of the Company, a "CFO letter" addressed to the
         Underwriters and dated the date of hereof, substantially in the form
         attached hereto as Exhibit 3.


                  (j) With respect to the letter of Timothy M. Mayleben referred
         to in Section 9(i) and delivered to the Representatives concurrently
         with the execution of this Agreement (the "initial CFO letter"), the
         Company shall have furnished to the Representatives a letter (the
         "bring-down CFO letter") of Timothy M. Mayleben, addressed to the
         Underwriters and dated such Delivery Date (i) stating, as of the date
         of the bring-down CFO letter, his conclusions and findings with respect
         to the financial information and other matters covered by the initial
         CFO letter and (ii) confirming in all material respects his conclusions
         and findings set forth in the initial CFO letter.















                                       20


                  (k) With respect to the letter of PricewaterhouseCoopers LLP
         referred to in Section 9(h) and delivered to the Representatives
         concurrently with the execution of this Agreement (the "initial
         letter"), the Company shall have furnished to the Representatives a
         letter (the "bring-down letter") of such accountants, addressed to the
         Underwriters and dated such Delivery Date (i) confirming that they are
         independent public accountants within the meaning of the Securities Act
         and are in compliance with the applicable requirements relating to the
         qualification of accountants under Rule 2-01 of Regulation S-X of the
         Commission, (ii) stating, as of the date of the bring-down letter (or,
         with respect to matters involving changes or developments since the
         respective dates as of which specified financial information is given
         in the Prospectus, as of a date not more than five days prior to the
         date of the bring-down letter), the conclusions and findings of such
         firm with respect to the financial information and other matters
         covered by the initial letter and (iii) confirming in all material
         respects the conclusions and findings set forth in the initial letter.



                  (l) The Company shall have furnished to the Representatives a
         certificate, dated such Delivery Date, of its President or a Vice
         President and its chief financial officer stating that:


                           (i) The representations, warranties and agreements of
                  the Company in Section 1 are true and correct in all material
                  respects as of such Delivery Date; the Company has complied in
                  all material respects with all its agreements contained
                  herein; and the conditions set forth in Sections 9(a) and 9(n)
                  have been fulfilled; and

                           (ii) They have carefully examined the Registration
                  Statement and the Prospectus and, in their opinion (A) as of
                  the Effective Date, the Registration Statement and Prospectus
                  did not include any untrue statement of a material fact and
                  did not omit to state a material fact required to be stated
                  therein or necessary to make the statements therein not
                  misleading, and (B) since the Effective Date no event has
                  occurred which should have been set forth in a supplement or
                  amendment to the Registration Statement or the Prospectus
                  which has not been so set forth.


                  (m) On the Second Delivery Date each Selling Stockholder shall
         have furnished to the Representatives a certificate, dated the Second
         Delivery Date, stating that:


                           (i) The representations, warranties and agreements of
                  the Selling Stockholder in Section 2: (A) if qualified in
                  Section 2 as to materiality or material adverse effect, are
                  true and correct and (B) in all other cases, are true and
                  correct in all material respects, in both cases as of the
                  Second Delivery Date; and

                           (ii) The Selling Stockholder has complied in all
                  material respects with all the agreements and satisfied all
                  the conditions on its part to be performed or satisfied at or
                  prior to the Second Delivery Date.

                  (n) (i) Neither the Company nor any of its Subsidiaries shall
         have sustained since the date of the latest audited financial
         statements included or incorporated by



                                       21


         reference in the Prospectus any loss or interference with its business
         from fire, explosion, flood or other calamity, whether or not covered
         by insurance, or from any labor dispute or court or governmental
         action, order or decree, otherwise than as set forth or contemplated in
         the Prospectus or (ii) since such date there shall not have been any
         material change in the capital stock or long-term debt of the Company
         or any of its Subsidiaries, otherwise than as set forth in the
         Prospectus, or any change, or any development involving a prospective
         change, in or affecting the management, financial position,
         stockholders' equity or results of operations of the Company and its
         Subsidiaries, otherwise than as set forth or contemplated in the
         Prospectus, the effect of which, in any such case described in clause
         (i) or (ii), is, in the judgment of the Representatives, so material
         and adverse as to make it impracticable or inadvisable to proceed with
         the public offering or the delivery of the Stock being delivered on
         such Delivery Date on the terms and in the manner contemplated in the
         Prospectus.

                  (o) Subsequent to the execution and delivery of this Agreement
         there shall not have occurred any of the following: (i) trading in
         securities generally on the New York Stock Exchange or the American
         Stock Exchange or in the over-the-counter market, or trading in any
         securities of the Company on any exchange or in the over-the-counter
         market, shall have been suspended or minimum prices shall have been
         established on any such exchange or such market by the Commission, by
         such exchange or by any other regulatory body or governmental authority
         having jurisdiction, (ii) a banking moratorium shall have been declared
         by Federal or state authorities, (iii) the United States shall have
         become engaged in hostilities, there shall have been an escalation in
         hostilities involving the United States or there shall have been a
         declaration of a national emergency or war by the United States or (iv)
         there shall have occurred such a material adverse change in general
         economic, political or financial conditions, including without
         limitation as a result of terrorist activities after the date hereof,
         or the effect of international conditions on the financial markets in
         the United States shall be such, as to make it, in the judgment of a
         majority in interest of the several Underwriters, impracticable or
         inadvisable to proceed with the public offering or delivery of the
         Stock being delivered on such Delivery Date on the terms and in the
         manner contemplated in the Prospectus.

                  (p) The Nasdaq National Market System shall have approved the
         Stock for inclusion, subject only to official notice of issuance.

                  All opinions, letters, evidence and certificates mentioned
above or elsewhere in this Agreement shall be deemed to be in compliance with
the provisions hereof only if they are in form and substance reasonably
satisfactory to counsel for the Underwriters.

                  10. Indemnification and Contribution.

                  (a) The Company shall indemnify and hold harmless each
         Underwriter, its officers and employees and each person, if any, who
         controls any Underwriter within the meaning of the Securities Act, from
         and against any loss, claim, damage or liability, joint or several, or
         any action in respect thereof (including, but not limited to, any loss,
         claim, damage, liability or action relating to purchases and sales of
         Stock), to which that Underwriter, officer, employee or controlling
         person may become subject, under the



                                       22



         Securities Act or otherwise, insofar as such loss, claim, damage,
         liability or action arises out of, or is based upon, (i) any untrue
         statement or alleged untrue statement of a material fact contained (A)
         in any Preliminary Prospectus, the Registration Statement or the
         Prospectus or in any amendment or supplement thereto, or (B) in any
         written or electronically transmitted materials or information provided
         to investors by, or with the approval of, the Company in connection
         with the marketing of the offering of the Stock ("Marketing
         Materials"), including any roadshow or investor presentations made to
         investors by the Company (whether in person or electronically), (ii)
         the omission or alleged omission to state in any Preliminary
         Prospectus, the Registration Statement or the Prospectus, or in any
         amendment or supplement thereto, or in any Marketing Materials any
         material fact required to be stated therein or necessary to make the
         statements therein not misleading or (iii) any act or failure to act or
         any alleged act or failure to act by any Underwriter in connection
         with, or relating in any manner to, the Stock or the offering
         contemplated hereby, and which is included as part of or referred to in
         any loss, claim, damage, liability or action arising out of or based
         upon matters covered by clause (i) or (ii) above (provided that the
         Company shall not be liable under this clause (iii) to the extent that
         it is determined in a final judgment by a court of competent
         jurisdiction that such loss, claim, damage, liability or action
         resulted directly from any such acts or failures to act undertaken or
         omitted to be taken by such Underwriter through its gross negligence or
         willful misconduct), and shall reimburse each Underwriter and each such
         officer, employee or controlling person promptly upon demand for any
         legal or other expenses reasonably incurred by that Underwriter,
         officer, employee or controlling person in connection with
         investigating or defending or preparing to defend against any such
         loss, claim, damage, liability or action within 60 days of the
         presentation of an invoice for any expenses incurred; provided,
         however, that the Company and shall not be liable in any such case to
         the extent that any such loss, claim, damage, liability or action
         arises out of, or is based upon, any untrue statement or alleged untrue
         statement or omission or alleged omission made in any Preliminary
         Prospectus, the Registration Statement or the Prospectus, or in any
         such amendment or supplement, in reliance upon and in conformity with
         written information concerning such Underwriter furnished to the
         Company through the Representatives by or on behalf of any Underwriter
         specifically for inclusion therein which information consists solely of
         the information specified in Section 10(f); provided, further, that the
         Company shall not be liable to any Underwriter or person controlling
         such Underwriter under the indemnity agreement in this Section 10(a) to
         the extent that such loss, claim, damage or liability of such
         Underwriter or person controlling such Underwriter results from the
         fact that such Underwriter sold Stock to a person, and there was not
         sent or given to such person, at or prior to the written confirmation
         of such sale to such person, to the extent required by law, a copy of
         the Prospectus dated the Effective Date (the "Final Prospectus") and
         the loss, claim, damage or liability of such Underwriter or person
         controlling such Underwriter results from an untrue statement or
         omission of a material fact contained in the Preliminary Prospectus
         previously delivered to such person which was corrected in the Final
         Prospectus. The foregoing indemnity agreement is in addition to any
         liability which the Company may otherwise have to any Underwriter or to
         any officer, employee or controlling person of that Underwriter.




                                       23



                  (b) The Selling Stockholders, severally in proportion to the
         number of shares of Option Stock to be sold by each of them hereunder
         and not jointly, shall indemnify and hold harmless each Underwriter,
         its officers and employees, and each person, if any, who controls any
         Underwriter within the meaning of the Securities Act, from and against
         any loss, claim, damage or liability, joint or several, or any action
         in respect thereof (including, but not limited to, any loss, claim,
         damage, liability or action relating to purchases and sales of Stock),
         to which that Underwriter, officer, employee or controlling person may
         become subject, under the Securities Act or otherwise, insofar as such
         loss, claim, damage, liability or action arises out of, or is based
         upon, (i) any untrue statement or alleged untrue statement of a
         material fact contained in any Preliminary Prospectus, the Registration
         Statement or the Prospectus or in any amendment or supplement thereto
         or (ii) the omission or alleged omission to state in any Preliminary
         Prospectus, Registration Statement or the Prospectus, or in any
         amendment or supplement thereto, any material fact required to be
         stated therein or necessary to make the statements therein not
         misleading, but in each case, only to the extent that the untrue
         statement, alleged untrue statement, omission or alleged material
         omission was made in reliance upon and in conformity with written
         information concerning such Selling Stockholder furnished to the
         Company by or on behalf of that Selling Stockholder specifically for
         inclusion therein, and shall reimburse each Underwriter, its officers
         and employees and each such controlling person for any legal or other
         expenses reasonably incurred by that Underwriter, its officers and
         employees or controlling person in connection with investigating or
         defending or preparing to defend against any such loss, claim, damage,
         liability or action as such expenses are incurred; provided, however,
         that the Selling Stockholders shall not be liable in any such case to
         the extent that any such loss, claim, damage, liability or action
         arises out of, or is based upon, any untrue statement or alleged untrue
         statement or omission or alleged omission made in any Preliminary
         Prospectus, the Registration Statement or the Prospectus or in any such
         amendment or supplement in reliance upon and in conformity with written
         information concerning such Underwriter furnished to the Company
         through the Representatives by or on behalf of any Underwriter
         specifically for inclusion therein which information consists solely of
         the information specified in Section 10(f). The foregoing indemnity
         agreement is in addition to any liability which the Selling
         Stockholders may otherwise have to any Underwriter or any officer,
         employee or controlling person of that Underwriter.



                  (c) Each Underwriter, severally and not jointly, shall
         indemnify and hold harmless the Company, each Selling Stockholder, and
         the Company's officers and employees, each of its directors, and each
         person, if any, who controls the Company within the meaning of the
         Securities Act, from and against any loss, claim, damage or liability,
         joint or several, or any action in respect thereof, to which the
         Company, any Selling Stockholder, or any such director, officer,
         employee or controlling person may become subject, under the Securities
         Act or otherwise, insofar as such loss, claim, damage, liability or
         action arises out of, or is based upon, (i) any untrue statement or
         alleged untrue statement of a material fact contained (A) in any
         Preliminary Prospectus, the Registration Statement or the Prospectus or
         in any amendment or supplement thereto, or (B) in any Marketing
         Materials or (ii) the omission or alleged omission to state in any
         Preliminary Prospectus, the Registration Statement or the Prospectus,
         or in any amendment or supplement thereto, or in any Marketing
         Materials any material fact required to be stated therein or necessary
         to make the statements therein not misleading,




                                       24


         but in each case only to the extent that the untrue statement or
         alleged untrue statement or omission or alleged omission was made in
         reliance upon and in conformity with written information concerning
         such Underwriter furnished to the Company by or on behalf of that
         Underwriter specifically for inclusion therein, and shall reimburse the
         Company, any Selling Stockholder and any such director, officer,
         employee or controlling person for any legal or other expenses
         reasonably incurred by the Company, such Selling Stockholder, or any
         such director, officer, employee or controlling person in connection
         with investigating or defending or preparing to defend against any such
         loss, claim, damage, liability or action as such expenses are incurred.
         The foregoing indemnity agreement is in addition to any liability which
         any Underwriter may otherwise have to the Company, the Selling
         Stockholders, or any such director, officer, employee or controlling
         person.


                  (d) Promptly after receipt by an indemnified party under this
         Section 10 of notice of any claim or the commencement of any action,
         the indemnified party shall, if a claim in respect thereof is to be
         made against the indemnifying party under this Section 10 notify the
         indemnifying party in writing of the claim or the commencement of that
         action; provided, however, that the failure to notify the indemnifying
         party shall not relieve it from any liability which it may have under
         this Section 10 except to the extent it has been materially prejudiced
         by such failure and, provided further, that the failure to notify the
         indemnifying party shall not relieve it from any liability which it may
         have to an indemnified party otherwise than under this Section 10. If
         any such claim or action shall be brought against an indemnified party,
         and it shall notify the indemnifying party thereof, the indemnifying
         party shall be entitled to participate therein and, to the extent that
         it wishes, jointly with any other similarly notified indemnifying
         party, to assume the defense thereof with counsel reasonably
         satisfactory to the indemnified party. After notice from the
         indemnifying party to the indemnified party of its election to assume
         the defense of such claim or action, the indemnifying party shall not
         be liable to the indemnified party under this Section 10 for any legal
         or other expenses subsequently incurred by the indemnified party in
         connection with the defense thereof other than reasonable costs of
         investigation; provided, however, that the Representatives shall have
         the right to employ counsel to represent jointly the Representatives
         and those other Underwriters and their respective officers, employees
         and controlling persons who may be subject to liability arising out of
         any claim in respect of which indemnity may be sought by the
         Underwriters against the Company or any Selling Stockholder under this
         Section 10 if, in the reasonable judgment of the Representatives,
         either (1) there is an actual or potential conflict between the
         position of the Company and the Underwriters, (2) there may be defenses
         available to the Underwriters that are different from, or in addition
         to, those available to the Company, or (3) the Company has failed to
         assume the defense of such action and employ counsel reasonably
         satisfactory to the Underwriters, in any of which events, the fees and
         expenses of such separate counsel shall be paid by the Company or the
         Selling Stockholders. No indemnifying party shall (i) without the prior
         written consent of the indemnified parties (which consent shall not be
         unreasonably withheld), settle or compromise or consent to the entry of
         any judgment with respect to any pending or threatened claim, action,
         suit or proceeding in respect of which indemnification or contribution
         may be sought hereunder (whether or not the indemnified parties are
         actual or potential parties to such claim or action) unless such
         settlement, compromise or consent includes an unconditional release




                                       25


         of each indemnified party from all liability arising out of such claim,
         action, suit or proceeding, or (ii) be liable for any settlement of any
         such action effected without its written consent (which consent shall
         not be unreasonably withheld), but if settled with the consent of the
         indemnifying party or if there be a final judgment of the plaintiff in
         any such action, the indemnifying party agrees to indemnify and hold
         harmless any indemnified party from and against any loss or liability
         by reason of such settlement or judgment.

                  (e) If the indemnification provided for in this Section 10
         shall for any reason be unavailable to or insufficient to hold harmless
         an indemnified party under Section 10(a), 10(b) or 10(c) in respect of
         any loss, claim, damage or liability, or any action in respect thereof,
         referred to therein, then each indemnifying party shall, in lieu of
         indemnifying such indemnified party, contribute to the amount paid or
         payable by such indemnified party as a result of such loss, claim,
         damage or liability, or action in respect thereof, (i) in such
         proportion as shall be appropriate to reflect the relative benefits
         received by the Company and the Selling Stockholders on the one hand
         and the Underwriters on the other from the offering of the Stock or
         (ii) if the allocation provided by clause (i) above is not permitted by
         applicable law, in such proportion as is appropriate to reflect not
         only the relative benefits referred to in clause (i) above but also the
         relative fault of the Company and the Selling Stockholders on the one
         hand and the Underwriters on the other with respect to the statements
         or omissions which resulted in such loss, claim, damage or liability,
         or action in respect thereof, as well as any other relevant equitable
         considerations. The relative benefits received by the Company and the
         Selling Stockholders on the one hand and the Underwriters on the other
         with respect to such offering shall be deemed to be in the same
         proportion as the total net proceeds from the offering of the Stock
         purchased under this Agreement (before deducting expenses) received by
         the Company and the Selling Stockholders on the one hand and the total
         underwriting discounts and commissions received by the Underwriters
         with respect to the shares of the Stock purchased under this Agreement
         on the other hand bear to the total gross proceeds from the offering of
         the shares of the Stock under this Agreement, in each case as set forth
         in the table on the cover page of the Prospectus. The relative fault
         shall be determined by reference to whether the untrue or alleged
         untrue statement of a material fact or omission or alleged omission to
         state a material fact relates to information supplied by the Company,
         the Selling Stockholders or the Underwriters, the intent of the parties
         and their relative knowledge, access to information and opportunity to
         correct or prevent such statement or omission. The Company, the Selling
         Stockholders and the Underwriters agree that it would not be just and
         equitable if contributions pursuant to this Section 10 were to be
         determined by pro rata allocation (even if the Underwriters were
         treated as one entity for such purpose) or by any other method of
         allocation which does not take into account the equitable
         considerations referred to herein. The amount paid or payable by an
         indemnified party as a result of the loss, claim, damage or liability,
         or action in respect thereof, referred to above in this Section 10
         shall be deemed to include, for purposes of this Section 10(e), any
         legal or other expenses reasonably incurred by such indemnified party
         in connection with investigating or defending any such action or claim.
         Notwithstanding the provisions of this Section 10(e), no Underwriter
         shall be required to contribute any amount in excess of the amount by
         which the total price at which the Stock underwritten by it and
         distributed to the public was offered to the public



                                       26


         exceeds the amount of any damages which such Underwriter has otherwise
         paid or become liable to pay by reason of any untrue or alleged untrue
         statement or omission or alleged omission. No person guilty of
         fraudulent misrepresentation (within the meaning of Section 11(f) of
         the Securities Act) shall be entitled to contribution from any person
         who was not guilty of such fraudulent misrepresentation. The
         Underwriters' obligations to contribute as provided in this Section
         10(e) are several in proportion to their respective underwriting
         obligations and not joint.

                  (f) The Underwriters severally confirm and the Company and the
         Selling Stockholders acknowledge that the statements with respect to
         the public offering of the Stock by the Underwriters set forth on the
         cover page of, the legend concerning over-allotments on the inside
         front cover page of and the concession and reallowance figures
         appearing under the caption "Underwriting" in, the Prospectus are
         correct and constitute the only information concerning such
         Underwriters furnished in writing to the Company by or on behalf of the
         Underwriters specifically for inclusion in the Registration Statement
         and the Prospectus.

                  11. Defaulting Underwriters.


                  If, on either Delivery Date, any Underwriter defaults in the
performance of its obligations under this Agreement, the remaining
non-defaulting Underwriters shall be obligated to purchase the Stock which the
defaulting Underwriter agreed but failed to purchase on such Delivery Date in
the respective proportions which the number of shares of the Firm Stock set
opposite the name of each remaining non-defaulting Underwriter in Schedule 1
hereto bears to the total number of shares of the Firm Stock set opposite the
names of all the remaining non-defaulting Underwriters in Schedule 1 hereto;
provided, however, that the remaining non-defaulting Underwriters shall not be
obligated to purchase any of the Stock on such Delivery Date if the total number
of shares of the Stock which the defaulting Underwriter or Underwriters agreed
but failed to purchase on such date exceeds 9.09% of the total number of shares
of the Stock to be purchased on such Delivery Date, and any remaining
non-defaulting Underwriter shall not be obligated to purchase more than 110% of
the number of shares of the Stock which it agreed to purchase on such Delivery
Date pursuant to the terms of Section 3. If the foregoing maximums are exceeded,
the remaining non-defaulting Underwriters, or those other underwriters
satisfactory to the Representatives who so agree, shall have the right, but
shall not be obligated, to purchase, in such proportion as may be agreed upon
among them, all the Stock to be purchased on such Delivery Date. If the
remaining Underwriters or other underwriters satisfactory to the Representatives
do not elect to purchase the shares which the defaulting Underwriter or
Underwriters agreed but failed to purchase on such Delivery Date, this Agreement
(or, with respect to the Second Delivery Date, the obligation of the
Underwriters to purchase, and of the Company to sell, the Option Stock) shall
terminate without liability on the part of any non-defaulting Underwriter, the
Company or the Selling Stockholders, except that the Company will continue to be
liable for the payment of expenses to the extent set forth in Sections 8 and 13.
As used in this Agreement, the term "Underwriter" includes, for all purposes of
this Agreement unless the context requires otherwise, any party not listed in
Schedule 1 hereto who, pursuant to this Section 11, purchases Firm Stock which a
defaulting Underwriter agreed but failed to purchase.




                                       27


                  Nothing contained herein shall relieve a defaulting
Underwriter of any liability it may have to the Company or the Selling
Stockholders for damages caused by its default. If other underwriters are
obligated or agree to purchase the Stock of a defaulting or withdrawing
Underwriter, either the Representatives or the Company may postpone the Delivery
Date for up to seven full business days in order to effect any changes that in
the opinion of counsel for the Company or counsel for the Underwriters may be
necessary in the Registration Statement, the Prospectus or in any other document
or arrangement.


                  12. Termination. The obligations of the Underwriters hereunder
may be terminated by the Representatives by notice given to and received by the
Company and the Selling Stockholders prior to delivery of and payment for the
Firm Stock if, prior to that time, any of the events described in Sections 9(n)
or 9(o), shall have occurred or if the Underwriters shall decline to purchase
the Stock for any reason permitted under this Agreement.



                  13. Reimbursement of Underwriters' Expenses. If (a) the
Company or any Selling Stockholder shall fail to tender the Stock for delivery
to the Underwriters by reason of any failure, refusal or inability on the part
of the Company or the Selling Stockholders to perform any agreement on its part
to be performed, or because any other condition of the Underwriters' obligations
hereunder required to be fulfilled by the Company or the Selling Stockholders is
not fulfilled, the Company and the Selling Stockholders will reimburse the
Underwriters for all reasonable out-of-pocket expenses (including reasonable
fees and disbursements of one counsel) incurred by the Underwriters in
connection with this Agreement and the proposed purchase of the Stock, and upon
demand the Company and the Selling Stockholders shall pay the full undisputed
amounts of invoices to the Representatives within 60 days of presentation of
such invoice. If this Agreement is terminated pursuant to Section 11 by reason
of the default of one or more Underwriters, neither the Company nor the Selling
Stockholders shall be obligated to reimburse any defaulting Underwriter on
account of those expenses.


                  14. Notices, etc. All statements, requests, notices and
agreements hereunder shall be in writing, and:

                  (a) if to the Underwriters, shall be delivered or sent by
         mail, telex or facsimile transmission to Lehman Brothers Inc., 745
         Seventh Avenue, New York, New York 10019, Attention: Syndicate
         Department (Fax: 212-526-0943), with a copy, in the case of any notice
         pursuant to Section 9(c), to the Director of Litigation, Office of the
         General Counsel, Lehman Brothers Inc., 745 Seventh Avenue, New York, NY
         10019;

                  (b) if to the Company, shall be delivered or sent by mail,
         telex or facsimile transmission to the address of the Company set forth
         in the Registration Statement, Attention: General Counsel
         (Fax:734-622-8334);

                  (c) if to any Selling Stockholder, shall be delivered or sent
         by mail, telex or facsimile transmission to such Selling Stockholder at
         the address set forth on Schedule 2 hereto;

provided, however, that any notice to an Underwriter pursuant to Section 10(d)
shall be delivered or sent by mail, telex or facsimile transmission to such
Underwriter at its address set forth in its acceptance telex to the
Underwriters, which address will be supplied to any other party hereto by



                                       28



the Representatives upon request. Any such statements, requests, notices or
agreements shall take effect at the time of receipt thereof. The Company and the
Selling Stockholders shall be entitled to act and rely upon any request,
consent, notice or agreement given or made on behalf of the Underwriters by
Lehman Brothers Inc. and the Company and the Underwriters shall be entitled to
act and rely upon any request, consent, notice or agreement given or made on
behalf of the Selling Stockholders by the Custodian.


                  15. Persons Entitled to Benefit of Agreement. This Agreement
shall inure to the benefit of and be binding upon the Underwriters, the Company,
the Selling Stockholders and their respective successors and personal
representatives. This Agreement and the terms and provisions hereof are for the
sole benefit of only those persons, except that (A) the representations,
warranties, indemnities and agreements of the Company and the Selling
Stockholders contained in this Agreement shall also be deemed to be for the
benefit of the person or persons, if any, who control any Underwriter within the
meaning of Section 15 of the Securities Act and (B) the indemnity agreement of
the Underwriters contained in Section 10(b) of this Agreement shall be deemed to
be for the benefit of directors of the Company, officers of the Company who have
signed the Registration Statement, the Selling Stockholders and any person
controlling the Company within the meaning of Section 15 of the Securities Act.
Nothing in this Agreement is intended or shall be construed to give any person,
other than the persons referred to in this Section 15, any legal or equitable
right, remedy or claim under or in respect of this Agreement or any provision
contained herein.

                  16. Survival. The respective indemnities, representations,
warranties and agreements of the Company, the Selling Stockholders and the
Underwriters contained in this Agreement or made by or on behalf on them,
respectively, pursuant to this Agreement, shall survive the delivery of and
payment for the Stock and shall remain in full force and effect, regardless of
any investigation made by or on behalf of any of them or any person controlling
any of them.

                  17. Definition of the Term "Business Day". For purposes of
this Agreement, "business day" means each Monday, Tuesday, Wednesday, Thursday
or Friday which is not a day on which banking institutions in New York are
generally authorized or obligated by law or executive order to close.

                  18. Governing Law. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF NEW YORK.

                  19. Counterparts. This Agreement may be executed in one or
more counterparts and, if executed in more than one counterpart, the executed
counterparts shall each be deemed to be an original but all such counterparts
shall together constitute one and the same instrument.

                  20. Headings. The headings herein are inserted for convenience
of reference only and are not intended to be part of, or to affect the meaning
or interpretation of, this Agreement.



                                       29


                  If the foregoing correctly sets forth the agreement among the
Company, the Selling Stockholders and the Underwriters, please indicate your
acceptance in the space provided for that purpose below.

                  [For electronic filings made under EDGAR, underwriters counsel
is requested to maintain one set of manually signed signature pages.]

                                        Very truly yours,

                                        ESPERION THERAPEUTICS, INC.


                                        By:
                                             -----------------------------------


                                        The Selling Stockholders named
                                        in Schedule 2 to this Agreement


                                        By:
                                             -----------------------------------
                                               Attorney-in-Fact

Accepted:

LEHMAN BROTHERS INC.
CITIGROUP GLOBAL MARKETS INC.
NEEDHAM & COMPANY, INC.
SG COWEN SECURITIES CORPORATION
U.S. BANCORP PIPER JAFFRAY INC.


For themselves and as Representatives
of the several Underwriters named in
Schedule 1 hereto


     By:  LEHMAN BROTHERS INC.

     By:
          ----------------------------------
            Authorized Representative



     By:  CITIGROUP GLOBAL MARKETS INC.

     By:
          ----------------------------------
            Authorized Representative



     By:  NEEDHAM & COMPANY, INC.


                                       30


     By:
          ----------------------------------
            Authorized Representative



     By:  SG COWEN SECURITIES CORPORATION

     By:
          ----------------------------------
            Authorized Representative


     By:  U.S. BANCORP PIPER JAFFRAY, INC.

     By:
          ----------------------------------
            Authorized Representative





                                       31




                                   SCHEDULE 1





                                                                                   Number of
Underwriters                                                                         Shares
- ------------                                                                         ------
                                                                                
Lehman Brothers Inc.............................................                    1,642,000
Citigroup Global Markets Inc....................................                      913,000
Needham & Company, Inc..........................................                      365,000
SG Cowen Securities Corporation.................................                      365,000
U.S. Bancorp Piper Jaffray Inc..................................                      365,000
Robert W. Baird & Co. Incorporated .............................                       50,000
CIBC World Markets Corp. .......................................                       50,000
Janney Montgomery Scott LLC.....................................                       50,000
RBC Dain Rauscher Inc. .........................................                       50,000
Caris & Company, Incorporated...................................                       30,000
Chatsworth Securities LLC.......................................                       30,000
Fahnestock & Co. Inc. ..........................................                       30,000
Fortis Securities Inc. .........................................                       30,000
Sands Brothers & Co., Ltd. .....................................                       30,000
                                                                                    ---------
       Total                                                                        4,000,000
                                                                                    =========








                                  Sched. 1 - 1




                                   SCHEDULE 2





                                                                                          Number of
                                                                                          Shares
Name and Address of Selling Stockholder                                                   of Option Stock
- ---------------------------------------                                                   ---------------
                                                                                      
Eileen M. More (1)                                                                          20,000

Roger S. Newton, Ph.D. (1)                                                                  95,000

Timothy M. Mayleben (1)                                                                     26,500

Brian R. Krause, Ph.D. (1)                                                                   6,000

Jean-Louis H. Dasseux, Ph.D. (1)                                                            14,000

Frank E. Thomas (1)                                                                          1,500

William F. Brinkerhoff (1)                                                                   3,000


Total                                                                                      166,000
                                                                                           -------


- ----------
(1)      The address of each of the beneficial owners is c/o Esperion
         Therapeutics, Inc., 3621 S. State Street, 695 KMS Place, Ann Arbor,
         Michigan 48108.





                                  Sched. 2 - 1


                                                                       EXHIBIT 1


                         OPINION OF PENNIE & EDMONDS LLP
                  INTELLECTUAL PROPERTY COUNSEL TO THE COMPANY


                  This opinion is delivered in connection with the Underwriting
Agreement, dated July ___, 2003 (the "Underwriting Agreement") relating to the
offering of 4,000,000 Stock, par value $0.001 each, of the Company, pursuant to
the registration statement on Form S-3 filed with the Securities and Exchange
Commission (File No. 333-106988) on July __, 2003. Unless otherwise defined
herein, capitalized terms used herein shall have the meanings ascribed to them
in the Underwriting Agreement.

                  Whenever our opinions herein are qualified by the phrase, "to
the best of our knowledge," such language means that based upon the actual
knowledge of attorneys presently within our firm (i.e., not including matters as
to which such attorneys could be deemed to have constructive knowledge and not
including knowledge of attorneys outside of Pennie & Edmonds LLP, who, at any
time, may have had responsibility for matters of the Company and its
Subsidiaries) and all knowledge that would have been gained upon the reasonable
investigation of our files.

                  We have read the Registration Statement and the Prospectus,
including particularly the portions of the Registration Statement and the
Prospectus referring to the patents, patent applications, trademarks, trademark
applications, designs and design applications as set forth in Appendix A,
attached hereto (the patents, patent applications, trademarks, trademark
applications, designs and design applications described in Appendix A shall be
collectively referred to as the "IP Rights")

                  Based on the foregoing, we are of the opinion that:

                  1. As to the statements in the Registration Statement and any
further amendment thereto made by the Company prior to the Delivery Date and in
the Prospectus or any further amendment or supplement thereto made by the
Company prior to the Delivery Date under the captions "Risk Factors - If we fail
to secure and enforce patents and other intellectual property rights underlying
our product candidates and technology, we may be unable to develop our product
candidates or compete effectively," "Risk Factors - If our licensing
arrangements with third parties are breached or terminated, we may lose rights
to commercialize our product candidates," "Risk Factors - We may face
significant expense and liability as a result of litigation or other proceedings
relating to patents and other intellectual property rights of third parties,
which could reduce our available capital," "Business - Intellectual Property,"
and "Business - License Arrangements and Collaborations," insofar as such
statements constitute matters of U.S. patent, trademark, copyright or design
laws or legal conclusions for which we are or have been retained by the Company,
to the best of our knowledge, are accurate in all material respects and complete
statements or summaries of the matters set forth therein.




                  2. As to the statements in the annual report on Form 10-K for
the fiscal year ended December 31, 2002 made by the Company under the captions
"Factors Affecting Our Future Prospects - If we fail to secure and enforce
patents and other intellectual property rights underlying our product candidates
or compete effectively," "Factors Affecting Our Future Prospects - If our
licensing arrangement with third parties are breached or terminated, we may lose
rights to commercialize our product candidates," "Factors Affecting Our Future
Prospects - We may face significant expense and liability as a result of
litigation or other proceedings relating to patents and other intellectual
property rights of others," and "Business - Intellectual Property and License
Agreements," insofar as such statements constitute matters of U.S. patent,
trademark, copyright or design laws or legal conclusions for which we are or
have been retained by the Company, to the best of our knowledge, are accurate in
all material respects and complete statements or summaries of the matters set
forth therein.

                  3. To the best of our knowledge, (i) the Registration
Statement and any further amendment thereto, and any information incorporated
therein by reference, made by the Company prior to the Delivery Date, at the
time such Registration Statement or amendment became effective, did not contain
an untrue statement of a material fact with respect to the IP Rights or omit to
state a material fact relating to the IP Rights required to be stated therein or
necessary to make the statements therein not misleading, (ii) the Prospectus and
any further amendment or supplement thereto made by the Company prior to the
Delivery Date, as of its date, did not contain an untrue statement of a material
fact with respect to the IP Rights or omit to state a material fact relating to
the IP Rights required to be stated therein or necessary to make the statements
therein not misleading, and (iii) at the Delivery Date, the Registration
Statement, the Prospectus and any further amendment or supplement thereto made
by the Company prior to the Delivery Date did not contain an untrue statement of
a material fact with respect to the IP Rights or omit to state a material fact
relating to the IP Rights required to be stated therein or necessary to make the
statements therein not misleading.

                  4. To the best of our knowledge, except to the extent
described in the Prospectus, the Company is the sole owner, co-owner or
exclusive licensee of the IP Rights listed in Appendix A, attached hereto.

                  5. To the best of our knowledge, except as described in the
Registration Statement and other than the prosecution of pending patent
applications, there is no pending action, suit proceeding or claim challenging
the validity or scope of any of the IP Rights listed in Appendix A, attached
hereto.

                  6. To the best of our knowledge, the Company has taken such
steps as are required, including the payment of all necessary maintenance fees,
to maintain the enforceability of the IP Rights and to maintain the pendency of
the Patent Applications, Trademark Applications and Design Applications,
specified in Appendix A, attached hereto.

                                       Yours faithfully,


                                       2



                                                                       EXHIBIT 2

                         OPINION OF HOLLAND & KNIGHT LLP
                  INTELLECTUAL PROPERTY COUNSEL TO THE COMPANY


                  This opinion is delivered in connection with the Underwriting
Agreement, dated July ___, 2003 (the "Underwriting Agreement") relating to the
offering of 4,000,000 Stock, par value $.001 each, of the Company, pursuant to
the registration statement on Form S-3 filed with the Securities and Exchange
Commission (File No. 333-106988) on July __, 2003. Unless otherwise defined
herein, capitalized terms used herein shall have the meanings ascribed to them
in the Underwriting Agreement.

                  Whenever our opinions herein are qualified by the phrase, "to
the best of our knowledge," such language means that based upon the actual
knowledge of attorneys presently within our firm and all knowledge that would
have been gained upon the reasonable investigation of our files.

                  We have read the Registration Statement and the Prospectus,
including particularly the portions of the Registration Statement and the
Prospectus referring to the patents, patent applications, trademarks, trademark
applications, designs and design applications as set forth in Appendix A,
attached hereto (the patents, patent applications, trademarks, trademark
applications, designs and design applications described in Appendix A shall be
collectively referred to as the "IP Rights").

                  Based on the foregoing, we are of the opinion that:

                  1. As to the statements in the Registration Statement and any
further amendment thereto made by the Company prior to the Delivery Date and in
the Prospectus or any further amendment or supplement thereto made by the
Company prior to the Delivery Date under the captions "Risk Factors - If we fail
to secure and enforce patents and other intellectual property rights underlying
our product candidates and technology, we may be unable to develop our product
candidates or compete effectively," "Risk Factors - If our licensing
arrangements with third parties are breached or terminated, we may lose rights
to commercialize our product candidates," "Risk Factors - We may face
significant expense and liability as a result of litigation or other proceedings
relating to patents and other intellectual property rights of third parties,
which could reduce our available capital," "Business - Intellectual Property,"
and "Business - License Arrangements and Collaborations," insofar as such
statements constitute matters of U.S. patent, trademark, copyright or design
laws or legal conclusions with respect thereto, are accurate in all material
respects and complete statements or summaries of the matters set forth therein.
(SPECIFY WHICH PRODUCTS ARE COVERED)

                  2. As to the statements in the annual report on form 10-K for
the fiscal year ended December 31, 2002 made by the Company under the captions
"Factors Affecting Our Future Prospects - If we fail to secure and enforce
patents and other intellectual property rights underlying our product candidates
and technologies, we may




be unable to develop our product candidates or compete effectively," "Factors
Affecting Our Future Prospects - If our licensing arrangements with third
parties are breached or terminated, we may lose rights to commercialize our
product candidates," "Factors Affecting Our Future Prospects - We may face
significant expense and liability as a result of litigation or other proceedings
relating to patents and other intellectual property rights of others," and
"Business - Intellectual Property and License Agreements," insofar as such
statements constitute matters of U.S. patent, trademark, copyright or design
laws or legal conclusions with respect thereto, are accurate in all material
respects and complete statements or summaries of the matters set forth therein.

                  3. To the best of our knowledge, (i) the Registration
Statement and any further amendment thereto, and any information incorporated
therein by reference, made by the Company prior to the Delivery Date, at the
time such Registration Statement or amendment became effective, did not contain
an untrue statement of a material fact with respect to the IP Rights or omit to
state a material fact relating to the IP Rights required to be stated therein or
necessary to make the statements therein not misleading, (ii) the Prospectus and
any further amendment or supplement thereto made by the Company prior to the
Delivery Date, as of its date, did not contain an untrue statement of a material
fact with respect to the IP Rights or omit to state a material fact relating to
the IP Rights required to be stated therein or necessary to make the statements
therein not misleading, and (iii) at the Delivery Date, the Registration
Statement, the Prospectus and any further amendment or supplement thereto made
by the Company prior to the Delivery Date did not contain an untrue statement of
a material fact with respect to the IP Rights or omit to state a material fact
relating to the IP Rights required to be stated therein or necessary to make the
statements therein not misleading.

                  4. Except to the extent described in the Prospectus, the
Company is listed in the records of the United State Patent and Trademark Office
and in the records of the appropriate foreign offices as the holder of holder of
record of the IP Rights. To the best of our knowledge, except to the extent
described in the Prospectus, the Company is the sole owner of the IP Rights. To
the best of our knowledge, except as described in the Registration Statement,
there is no pending or threatened action, suit proceeding or claim challenging
the validity or scope of any of the IP Rights.

                  5. To the best of our knowledge, the Company has taken such
steps as are required, including the payment of all necessary maintenance fees,
to maintain the enforceability of the IP Rights and to maintain the pendency of
the Patent Applications, Trademark Applications and Design Applications,
specified in Appendix A, attached hereto.

                                            Yours faithfully,


                                       2



                                                                       EXHIBIT 3

                           ESPERION THERAPEUTICS, INC

                       CHIEF FINANCIAL OFFICER CERTIFICATE

                  On April 18, 2002, Esperion Therapeutics, Inc., a Delaware
corporation (the "Company"), removed Arthur Andersen LLP ("Andersen") as the
Company's independent public accountants and retained PricewaterhouseCoopers LLP
as the Company's new independent public accountants for the fiscal year 2002.
This change was made upon the recommendation of the audit committee of the
Company's board of directors and with the approval of the Company's board of
directors and was based on the continuing uncertainty regarding Andersen's
future. This certificate is being delivered in my capacity as Chief Financial
Officer of the Company, in connection with the offering by the Company of
4,000,000 shares of the Company's common stock (the "Common Stock"), and based
upon our prior preparation and review of the Company's financial records and
schedules undertaken by myself or members of my staff who are responsible for
the Company's financial and accounting matters, I hereby certify that:


                  Nothing has come to my attention that would lead me to believe
         that the consolidated balance sheet of the Company and Subsidiaries as
         of December 31, 2001, and the related consolidated statements of
         operations, stockholders' equity, and cash flows for each of the two
         years in the period ended December 31, 2001 and the period from
         inception to December 31, 2001, incorporated by reference in the
         Prospectus of the Company, dated [July ____, 2003] (the "Prospectus")
         related to the offering of the Common Stock do not present fairly the
         financial position of the Company and Subsidiaries at December 31,
         2001, and the results of their operations and cash flows for each of
         the two years in the period ended December 31, 2001 and the period from
         inception to December 31, 2001 in conformity with generally accepted
         accounting principles.


Dated as of this _____ day of July 2003.

                                               ---------------------------------
                                               Chief Financial Officer