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                                                                     EXHIBIT 1.1

                                2,625,000 Shares

                            NICHOLS TXEN CORPORATION

                                  Common Stock

                             UNDERWRITING AGREEMENT
                             ----------------------


                                                               July      , 1999
                                                                    -----

CIBC World Markets Corp.
Friedman, Billings, Ramsey & Co.
The Robinson-Humphrey Company, LLC
c/o CIBC World Markets Corp.
One World Financial Center
New York, New York  10281

On behalf of the Several
Underwriters named on
Schedule I attached hereto.

Ladies and Gentlemen:

                  Nichols TXEN Corporation, a Delaware corporation (the
"Company"), proposes, subject to the terms and conditions contained herein, to
sell to you and the other underwriters named on Schedule I to this Agreement
(the "Underwriters"), for whom you are acting as Representatives (the
"Representatives"), an aggregate of 2,625,000 shares (the "Firm Shares") of the
Company's Common Stock, $0.01 par value (the "Common Stock"). The respective
amounts of the Firm Shares to be purchased by each of the several Underwriters
are set forth opposite their names on Schedule I hereto. In addition, the
Company proposes to grant to the Underwriters an option to purchase up to an
additional 375,000 shares (the "Option Shares") of Common Stock from it for the
purpose of covering over-allotments in connection with the sale of the Firm
Shares. The Firm Shares and the Option Shares are together called the "Shares."


                  1.  Sale and Purchase of the Shares.

                  On the basis of the representations, warranties and agreements
contained in, and subject to the terms and conditions of, this Agreement:

                  (a) The Company agrees to sell to each of the Underwriters,
           and each of the Underwriters agrees, severally and not jointly, to
           purchase from the Company, at a


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           price of $_____ per share (the "Initial Price"), the number of Firm
           Shares set forth opposite the name of such Underwriter under the
           column "Number of Firm Shares to be Purchased from the Company" on
           Schedule I to this Agreement, subject to adjustment in accordance
           with Section 11 hereof.

                  (b) The Company grants to the several Underwriters an option
           to purchase, severally and not jointly, all or any part of the Option
           Shares at the Initial Price. The number of Option Shares to be
           purchased by each Underwriter shall be the same percentage (adjusted
           by the Representatives to eliminate fractions) of the total number of
           Option Shares to be purchased by the Underwriters as such Underwriter
           is purchasing of the Firm Shares. Such option may be exercised only
           to cover over-allotments in the sales of the Firm Shares by the
           Underwriters and may be exercised in whole or in part at any time on
           or before 12:00 noon, New York City time, on the business day before
           the Firm Shares Closing Date (as defined below), and from time to
           time thereafter within 30 days after the date of this Agreement, in
           each case upon written, facsimile or telegraphic notice, or verbal or
           telephonic notice confirmed by written, facsimile or telegraphic
           notice, by the Representatives to the Company no later than 12:00
           noon, New York City time, on the business day before the Firm Shares
           Closing Date or at least two business days before the Option Shares
           Closing Date (as defined below), as the case may be, setting forth
           the number of Option Shares to be purchased and the time and date (if
           other than the Firm Shares Closing Date) of such purchase.


                  2.  Delivery and Payment. Delivery by the Company of the Firm
Shares to the Representatives for the respective accounts of the Underwriters,
and payment of the purchase price by certified or official bank check or checks
payable in New York Clearing House (same day) funds drawn to the order of the
Company for the shares purchased from the Company, against delivery of the
respective certificates therefor to the Representatives, shall take place at the
offices of CIBC World Markets Corp., at CIBC World Markets Tower, World
Financial Center, New York, New York 10281, at 10:00 a.m., New York City time,
on the third business day following the date of this Agreement, or at such time
on such other date, not later than 10 business days after the date of this
Agreement, as shall be agreed upon by the Company and the Representatives (such
time and date of delivery and payment are called the "Firm Shares Closing
Date").

                  In the event the option with respect to the Option Shares is
exercised in whole or in part on one or more occasions, delivery by the Company
of the Option Shares to the Representatives for the respective accounts of the
Underwriters and payment of the purchase price thereof in immediately available
funds by wire transfer or by certified or official bank check or checks payable
in New York Clearing House (same day) funds to the Company shall take place at
the offices of CIBC World Markets Corp. specified above at the time and on the
date (which may be the same date as, but in no event shall be earlier than, the
Firm Shares Closing Date) specified in the notice referred to in Section 1(b)
(such time and date of delivery and payment are called the "Option Shares
Closing Date"). The Firm Shares Closing Date and the Option Shares

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Closing Date are called, individually, a "Closing Date" and, together, the
"Closing Dates."

                  Certificates evidencing the Shares shall be registered in such
names and shall be in such denominations as the Representatives shall request at
least two full business days before the Firm Shares Closing Date or, in the case
of Option Shares, on the day of notice of exercise of the option as described in
Section l(b) and shall be made available to the Representatives for checking and
packaging, at such place as is designated by the Representatives, on the full
business day before the Firm Shares Closing Date (or the Option Shares Closing
Date in the case of the Option Shares).

                  3. Registration Statement and Prospectus; Public Offering. The
Company has prepared and filed in conformity with the requirements of the
Securities Act of 1933, as amended (the "Securities Act"), and the published
rules and regulations thereunder (the "Rules") adopted by the Securities and
Exchange Commission (the "Commission") a Registration Statement (as hereinafter
defined) on Form S-1 (No. 333-71031), including a preliminary prospectus
relating to the Shares, and such amendments thereof as may have been required to
the date of this Agreement. Copies of such Registration Statement (including all
amendments thereof) and of the related Preliminary Prospectus (as hereinafter
defined) have heretofore been delivered by the Company to you. The term
"Preliminary Prospectus" means any preliminary prospectus (as described in Rule
430 of the Rules) included at any time as a part of the Registration Statement
or filed with the Commission by the Company with the consent of the
Representatives pursuant to Rule 424(a) of the Rules. The term "Registration
Statement" as used in this Agreement means the initial registration statement
(including all exhibits, financial schedules and information deemed to be a part
of the Registration Statement through incorporation by reference or otherwise),
as amended at the time and on the date it becomes effective (the "Effective
Date") and as thereafter amended by post effective amendments. If the Company
has filed an abbreviated registration statement to register additional Shares
pursuant to Rule 462(b) under the Rules (the "462(b) Registration Statement")
then any reference herein to the Registration Statement shall also be deemed to
include such 462(b) Registration Statement. The term "Prospectus" as used in
this Agreement means the prospectus in the form included in the Registration
Statement at the time of effectiveness or, if Rule 430A of the Rules is relied
on, the term Prospectus shall also include the final prospectus filed with the
Commission pursuant to Rule 424(b) of the Rules.

                  The Company understands that the Underwriters propose to make
a public offering of the Shares, as set forth in and pursuant to the Prospectus,
as soon after the Effective Date and the date of this Agreement as the
Representatives deem advisable. The Company hereby confirms that the
Underwriters and dealers have been authorized to distribute or cause to be
distributed each Preliminary Prospectus and are authorized to distribute the
Prospectus (as from time to time amended or supplemented if the Company
furnishes amendments or supplements thereto to the Underwriters).

                  4.  Representations and Warranties of the Company. The Company
hereby represents and warrants to each Underwriter as follows:

                  (a) On the Effective Date, the Registration Statement
           complied, and on the


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           date of the Prospectus, the date any post-effective amendment to the
           Registration Statement becomes effective, the date any supplement or
           amendment to the Prospectus is filed with the Commission and each
           Closing Date, the Registration Statement and the Prospectus (and any
           amendment thereof or supplement thereto) will comply, in all material
           respects, with the applicable provisions of the Securities Act and
           the Rules and the Securities Exchange Act of 1934, as amended (the
           "Exchange Act"), and the rules and regulations of the Commission
           thereunder. The Registration Statement did not, as of the Effective
           Date, contain any untrue statement of a material fact or omit to
           state any material fact required to be stated therein or necessary in
           order to make the statements therein not misleading; and on the other
           dates referred to above neither the Registration Statement nor the
           Prospectus, nor any amendment thereof or supplement thereto, will
           contain any untrue statement of a material fact or will omit to state
           any material fact required to be stated therein or necessary in order
           to make the statements therein not misleading. When any related
           preliminary prospectus was first filed with the Commission (whether
           filed as part of the Registration Statement or any amendment thereto
           or pursuant to Rule 424(a) of the Rules) and when any amendment
           thereof or supplement thereto was first filed with the Commission,
           such preliminary prospectus as amended or supplemented complied in
           all material respects with the applicable provisions of the
           Securities Act and the Rules and did not contain any untrue statement
           of a material fact or omit to state any material fact required to be
           stated therein or necessary in order to make the statements therein
           not misleading. Notwithstanding the foregoing, none of the
           representations and warranties in this paragraph 4(a) shall apply to
           statements in, or omissions from, the Registration Statement or the
           Prospectus made in reliance upon, and in conformity with, information
           herein or otherwise furnished in writing by the Representatives on
           behalf of the several Underwriters for use in the Registration
           Statement or the Prospectus. With respect to the preceding sentence,
           the Company acknowledges that the only information furnished in
           writing by the Representatives on behalf of the several Underwriters
           for use in the Registration Statement or the Prospectus is the
           statements contained under the caption "Underwriting" in the
           Prospectus.

                  (b) The Registration Statement is effective under the
           Securities Act and no stop order preventing or suspending the
           effectiveness of the Registration Statement or suspending or
           preventing the use of the Prospectus has been issued and no
           proceedings for that purpose have been instituted or are threatened
           under the Securities Act; any required filing of the Prospectus and
           any supplement thereto pursuant to Rule 424(b) of the Rules has been
           or will be made in the manner and within the time period required by
           such Rule 424(b).

                  (c) The financial statements of the Company (including all
           notes and schedules thereto) included in the Registration Statement
           and Prospectus present fairly the financial position, the results of
           operations, the statements of cash flows and the statements of
           stockholders' equity and the other information purported to be shown
           therein of the Company at the respective dates and for the respective
           periods to which they apply; and such financial statements and
           related schedules and notes have been


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           prepared in conformity with generally accepted accounting principles,
           consistently applied throughout the periods involved, and all
           adjustments necessary for a fair presentation of the results for such
           periods have been made. The summary and selected financial data
           included in the Prospectus present fairly the information shown
           therein as at the respective dates and for the respective periods
           specified and the summary and selected financial data have been
           presented on a basis consistent with the consolidated financial
           statements so set forth in the Prospectus and other financial
           information.

                  (d) Ernst & Young LLP, whose reports are filed with the
           Commission as a part of the Registration Statement, are and, during
           the periods covered by their reports, were independent public
           accountants as required by the Securities Act and the Rules.

                  (e) The Company and each of the Subsidiaries (as hereinafter
           defined) is a corporation duly organized, validly existing and in
           good standing under the laws of the jurisdiction of its
           incorporation. The Company and each such subsidiary or other entity
           controlled directly or indirectly by the Company (collectively,
           "Subsidiaries") is duly qualified to do business and is in good
           standing as a foreign corporation in each jurisdiction in which the
           nature of the business conducted by it or location of the assets or
           properties owned, leased or licensed by it requires such
           qualification, except for such jurisdictions where the failure to so
           qualify would not, individually or in the aggregate, have a material
           adverse effect on the assets or properties, business, results of
           operations or financial condition of the Company (a "Material Adverse
           Effect"). The Company does not own, lease or license any asset or
           property or conduct any business outside the United States of
           America. The Company and each of its Subsidiaries has all requisite
           corporate power and authority, and all necessary authorizations,
           approvals, consents, orders, licenses, certificates and permits of
           and from all governmental or regulatory bodies or any other person or
           entity (collectively, the "Permits"), to own, lease and license its
           assets and properties and conduct its business, all of which are
           valid and in full force and effect, as described in the Registration
           Statement and the Prospectus, except where the lack of such Permits
           would not have a Material Adverse Effect; the Company and each of its
           Subsidiaries has fulfilled and performed in all material respects all
           its material obligations with respect to such Permits and no event
           has occurred that allows, or after notice or lapse of time would
           allow, revocation or termination thereof or results in any other
           material impairment of the rights of the Company thereunder. Except
           as may be required under the Securities Act and state and foreign
           Blue Sky laws, no other Permits are required to enter into, deliver
           and perform this Agreement and to issue and sell the Shares.

                  (f) Each of the Company and its Subsidiaries owns or possesses
           adequate and enforceable rights to use all trademarks, trademark
           applications, trade names, service marks, copyrights, copyright
           applications, patents, licenses, know-how and other similar rights
           and proprietary knowledge (collectively, "Intangibles") necessary for
           the conduct of its business. Other than as set forth in the
           Registration Statement and the Prospectus, neither the Company nor
           any of its Subsidiaries has received any notice of, or is aware of,
           any infringement of or conflict with asserted rights of others with

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           respect to any Intangibles.

                  (g) The Company and each of its Subsidiaries has good and
           marketable title in fee simple to all items of real property and good
           and marketable title to all personal property described in the
           Prospectuses as being owned by it and any real property and buildings
           described in the Prospectuses as being held under lease by the
           Company and each of its Subsidiaries is held by it under valid,
           existing and enforceable leases, free and clear of all liens,
           encumbrances, claims, security interests and defects, except such as
           are described in the Registration Statement and the Prospectus or
           would not have a Material Adverse Effect.

                  (h) There are no litigation or governmental proceedings to
           which the Company or its Subsidiaries is subject or which is pending
           or, to the knowledge of the Company, threatened, against the Company
           or any of its Subsidiaries, which might have a Material Adverse
           Effect, affect the consummation of this Agreement or which is
           required to be disclosed in the Registration Statement and the
           Prospectus that is not so disclosed.

                  (i) Subsequent to the respective dates as of which information
           is given in the Registration Statement and the Prospectus, except as
           described therein, (a) there has not been any material adverse change
           with regard to the assets or properties, business, results of
           operations or financial condition of the Company; (b) neither the
           Company nor its Subsidiaries has sustained any loss or interference
           with its assets, businesses or properties (whether owned or leased)
           from fire, explosion, earthquake, flood or other calamity, whether or
           not covered by insurance, or from any labor dispute or any court or
           legislative or other governmental action, order or decree which would
           have a Material Adverse Effect; and (c) since the date of the latest
           balance sheet included in the Registration Statement and the
           Prospectus, except as reflected therein, neither the Company nor its
           Subsidiaries has (i) issued any securities or incurred any liability
           or obligation, direct or contingent, for borrowed money, except such
           liabilities or obligations incurred in the ordinary course of
           business, (ii) entered into any transaction not in the ordinary
           course of business or (iii) declared or paid any dividend or made any
           distribution on any shares of its stock or redeemed, purchased or
           otherwise acquired or agreed to redeem, purchase or otherwise acquire
           any shares of its stock.

                  (j) There is no document, contract or other agreement of a
           character required to be described in the Registration Statement or
           Prospectus or to be filed as an exhibit to the Registration Statement
           which is not described or filed as required by the Securities Act or
           Rules. Each description of a contract, document or other agreement in
           the Registration Statement and the Prospectus accurately reflects in
           all respects the terms of the underlying document, contract or
           agreement. Each agreement described in the Registration Statement and
           Prospectus or listed in the Exhibits to the Registration Statement is
           in full force and effect and is valid and enforceable by and against
           the Company or a Subsidiary, as the case may be, in accordance with
           its terms. Neither the Company nor a Subsidiary, if the Subsidiary is
           a party, nor to the Company's


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           knowledge, any other party is in default in the observance or
           performance of any term or obligation to be performed by it under any
           such agreement, and no event has occurred which with notice or lapse
           of time or both would constitute such a default, in any such case
           which default or event would have a Material Adverse Effect. No
           default exists, and no event has occurred which with notice or lapse
           of time or both would constitute a default, in the due performance
           and observance of any term, covenant or condition, by the Company or
           a Subsidiary, if the Subsidiary is a party thereto, of any other
           agreement or instrument to which the Company or a Subsidiary is a
           party or by which the Company, the Subsidiary or their properties or
           business may be bound or affected which default or event would have a
           Material Adverse Effect.

                  (k) Neither the Company nor any of its Subsidiaries is in
           violation of any term or provision of its charter or by-laws or of
           any franchise, license, permit, judgment, decree, order, statute,
           rule or regulation, where the consequences of such violation would
           have a Material Adverse Effect.

                  (l) Neither the execution, delivery and performance of this
           Agreement by the Company nor the consummation of any of the
           transactions contemplated hereby (including, without limitation, the
           issuance and sale by the Company of the Shares) will give rise to a
           right to terminate or accelerate the due date of any payment due
           under, or conflict with or result in the breach of any term or
           provision of, or constitute a default (or an event which with notice
           or lapse of time or both would constitute a default) under, or
           require any consent or waiver under, or result in the execution or
           imposition of any lien, charge or encumbrance upon any properties or
           assets of the Company or any Subsidiary pursuant to the terms of, any
           indenture, mortgage, deed of trust or other agreement or instrument
           to which the Company or any Subsidiary is a party or by which either
           the Company or any Subsidiary or any of their properties or
           businesses is bound, or any franchise, license, permit, judgment,
           decree, order, statute, rule or regulation applicable to the Company
           or any Subsidiary or violate any provision of the charter or by-laws
           of the Company or any Subsidiary, except for such consents or waivers
           which have already been obtained and are in full force and effect.

                  (m) The Company has authorized and outstanding capital stock
           as set forth under the caption "Capitalization" in the Prospectus.
           The certificates evidencing the Shares are in due and proper legal
           form and have been duly authorized for issuance by the Company. All
           of the issued and outstanding shares of Common Stock have been duly
           and validly issued and are fully paid and nonassessable. There are no
           statutory preemptive or other similar rights to subscribe for or to
           purchase or acquire any shares of Common Stock of the Company or its
           Subsidiaries or any such rights pursuant to its Certificate of
           Incorporation or by-laws or any agreement or instrument to or by
           which the Company or any of its Subsidiaries is a party or bound. The
           Shares, when issued and sold pursuant to this Agreement, will be duly
           and validly issued, fully paid and nonassessable and none of them
           will be issued in violation of any preemptive or other similar right.
           Except as disclosed in the Registration Statement and the Prospectus,
           there is no outstanding option, warrant or other right calling for
           the issuance of, and


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           there is no commitment, plan or arrangement to issue, any share of
           stock of the Company or its Subsidiaries or any security convertible
           into, or exercisable or exchangeable for, such stock. The Common
           Stock and the Shares conform in all material respects to all
           statements in relation thereto contained in the Registration
           Statement and the Prospectus. All outstanding shares of capital stock
           of each Subsidiary have been duly authorized and validly issued, and
           are fully paid and nonassessable and are owned directly by the
           Company or by another wholly-owned subsidiary of the Company free and
           clear of any security interests, liens, encumbrances, equities or
           claims, other than those described in the Prospectus.

                  (n) No holder of any security of the Company has the right to
           have any security owned by such holder included in the Registration
           Statement or to demand registration of any security owned by such
           holder during the period ending 180 days after the date of this
           Agreement. Each stockholder, director and executive officer of the
           Company, Nichols Research Corporation ("Parent") and each executive
           officer and director of Parent has delivered to the Representatives
           his enforceable written lock-up agreement in the form attached to
           this Agreement ("Lock-Up Agreement").

                  (o) All necessary corporate action has been duly and validly
           taken by the Company and the Parent to authorize the execution,
           delivery and performance of this Agreement and the issuance and sale
           of the Shares. This Agreement has been duly and validly authorized,
           executed and delivered by the Company and constitute and will
           constitute legal, valid and binding obligations of the Company
           enforceable against the Company in accordance with their respective
           terms, except (i) as the enforceability thereof may be limited by
           bankruptcy, insolvency, reorganization, moratorium or other similar
           laws affecting the enforcement of creditors' rights generally and by
           general equitable principles and (ii) to the extent that rights to
           indemnity or contribution under this Agreement may be limited by
           Federal and state securities laws or the public policy underlying
           such laws.

                  (p) The Company or any of its Subsidiaries are is not involved
           in any labor dispute nor, to the knowledge of the Company, is any
           such dispute threatened, which dispute would have a Material Adverse
           Effect. The Company is not aware of any existing or imminent labor
           disturbance by the employees of any of its principal suppliers or
           contractors which would have a Material Adverse Effect. The Company
           is not aware of any threatened or pending litigation between the
           Company or its Subsidiaries and any of its officers which, if
           adversely determined, could have a Material Adverse Effect and has no
           reason to believe that such officers will not remain in the
           employment of the Company.

                  (q) No transaction has occurred between or among (i) the
           Company and (ii) the Parent, any affiliate of the Company or Parent
           and any of the Company's officers or directors or any affiliate or
           affiliates of any such officer or director that is required to be
           described in and is not described in the Registration Statement and
           the Prospectus.

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                  (r) The Company has not taken, nor will it take, directly or
           indirectly, any action designed to or which might reasonably be
           expected to cause or result in, or which has constituted or which
           might reasonably be expected to constitute, the stabilization or
           manipulation of the price of the Common Stock to facilitate the sale
           or resale of any of the Shares.

                  (s) The Company and its Subsidiaries has filed all Federal,
           state, local and foreign tax returns which are required to be filed
           through the date hereof, or has received extensions thereof, and has
           paid all taxes shown on such returns and all assessments received by
           it to the extent that the same are material and have become due, and
           there are no tax audits or investigations pending, which if adversely
           determined would have a Material Adverse Effect; nor are there any
           material proposed additional tax assessments against the Company and
           any of its Subsidiaries.

                  (t) The Shares have been duly authorized for quotation on
           Nasdaq National Market, subject to official Notice of Issuance, and a
           registration statement has been filed on Form 8-A pursuant to Section
           12 of the Securities Exchange Act of 1934, as amended (the "Exchange
           Act"), which registration statement complies in all material respects
           with the Exchange Act.

                  (u) The Company has complied with all of the requirements and
           filed the required forms as specified in Florida Statutes Section
           517.075.

                  (v) The books, records and accounts of the Company and its
           Subsidiaries accurately and fairly reflect, in reasonable detail, the
           transactions in, and dispositions of, the assets of, and the results
           of operations of, the Company and its Subsidiaries. The Company and
           each of its Subsidiaries maintains a system of internal accounting
           controls sufficient to provide reasonable assurances that (i)
           transactions are executed in accordance with management's general or
           specific authorizations, (ii) transactions are recorded as necessary
           to permit preparation of financial statements in accordance with
           generally accepted accounting principles and to maintain asset
           accountability, (iii) access to assets is permitted only in
           accordance with management's general or specific authorization and
           (iv) the recorded accountability for assets is compared with the
           existing assets at reasonable intervals and appropriate action is
           taken with respect to any differences.

                  (w) The Company and its Subsidiaries is insured by insurers of
           recognized financial responsibility against such losses and risks and
           in such amounts as are customary in the businesses in which they are
           engaged or propose to engage after giving effect to the transactions
           described in the Prospectus; and neither the Company nor any
           Subsidiary of the Company has reason to believe that it will not be
           able to renew its existing insurance coverage as and when such
           coverage expires or to obtain similar coverage from similar insurers
           as may be necessary to continue its business at a cost that would not
           have a Material Adverse Effect. Neither the Company nor any
           Subsidiary has been denied any insurance coverage which it has sought
           or for which it has applied.

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                  (x) Each approval, consent, order, authorization, designation,
           declaration or filing of, by or with any regulatory, administrative
           or other governmental body necessary in connection with the execution
           and delivery by the Company of this Agreement and the consummation of
           the transactions herein contemplated required to be obtained or
           performed by the Company (except such additional steps as may be
           required by the National Association of Securities Dealers, Inc. (the
           "NASD") or may be necessary to qualify the Shares for public offering
           by the Underwriters under the state securities or Blue Sky laws) has
           been obtained or made and is in full force and effect.

                  (y) There are no affiliations or associations with the NASD
           among the Company, the Company's officers or directors or the Parent,
           except as set forth in the Registration Statement or otherwise
           disclosed in writing to the Representatives of the Underwriters.

                  (z) (i) Each of the Company and its Subsidiaries is in
           compliance in all material respects with all rules, laws and
           regulation relating to the use, treatment, storage and disposal of
           toxic substances and protection of health or the environment
           ("Environmental Law") which are applicable to its business; (ii) none
           of the Company or its Subsidiaries has received any notice from any
           governmental authority or third party of an asserted claim under
           Environmental Laws; (iii) each of the Company and its Subsidiaries
           has received all permits, licenses or other approvals required of it
           under applicable Environmental Laws to conduct its business and is in
           compliance with all terms and conditions of any such permit, license
           or approval; (iv) to the Company's knowledge, no facts currently
           exist that will require the Company or its Subsidiaries to make
           future material capital expenditures to comply with Environmental
           Laws; and (v) no property which is or has been owned, leased or
           occupied by the Company or its Subsidiaries has been designated as a
           Superfund site pursuant to the Comprehensive Environmental Response,
           Compensation of Liability Act of 1980, as amended (42 U.S.C. Section
           9601, et. seq.) or otherwise designated as a contaminated site under
           applicable state or local law.

                  (aa) The Company is not and, after giving effect to the
           offering and sale of the Shares and the application of proceeds
           thereof as described in the Prospectus, will not be an "investment
           company" within the meaning of the Investment Company Act of 1940, as
           amended (the "Investment Company Act").

                  (bb) Other than as set forth in the Prospectus, the Company's
           information technology, which includes, without limitation, its
           internal systems, software, hardware and the network connections it
           maintains, is Year 2000 Compliant. To the knowledge of the Company,
           the information technology of the Company's suppliers, customers,
           sub-contractors, payment clearing houses and payors with whom it
           electronically interacts, are Year 2000 Compliant, other than
           non-compliance which, individually or in the aggregate, would not
           have a Material Adverse Effect. "Year 2000 Compliant" means the
           information technology is designed to be used prior to, during and
           after the calendar Year 2000, and the information technology used
           during each such time period will accurately receive,

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           provide and process date/time data (including, but not limited to,
           calculating, comparing and sequencing) from, into and between the
           20th and 21st centuries, including the years 1999 and 2000, and
           leap-year calculations and will not malfunction, cease to function,
           or provide invalid or incorrect results as a result of date/time
           data. The Company has conducted surveys of its managed care clients,
           physician practice management clients, suppliers, sub-contractors,
           payment clearing houses and payors with whom it electronically
           interacts regarding Year 2000 compliance.

                  (cc) Neither the Company, its Subsidiaries nor any other
           person associated with or acting on behalf of the Company or its
           Subsidiaries including, without limitation, any director, officer,
           agent or employee of the Company or its Subsidiaries has, directly or
           indirectly, while acting on behalf of the Company or its Subsidiaries
           (i) used any corporate funds for unlawful contributions, gifts,
           entertainment or other unlawful expenses relating to political
           activity; (ii) made any unlawful payment to foreign or domestic
           government officials or employees or to foreign or domestic political
           parties or campaigns from corporate funds; (iii) violated any
           provision of the Foreign Corrupt Practices Act of 1977, as amended;
           or (iv) made any other unlawful payment.

                  (dd) The Company and each of its Subsidiaries have operated
           and currently operate their business in conformity with all
           applicable laws, rules and regulations of each jurisdiction in which
           it is conducting business, including all state and federal health
           care laws, except where the failure to so be in compliance would not
           reasonably be expected to have a Material Adverse Effect.

                  (ee) 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"); no "reportable
           event" (as defined in ERISA) has occurred with respect to any
           "pension plan" (as defined in ERISA) for which the Company would have
           any liability; 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.

                  5    Conditions of the Underwriters' Obligations. The
obligations of the Underwriters under this Agreement are several and not joint.
The respective obligations of the Underwriters to purchase the Shares are
subject to each of the following terms and conditions:

                  (a)  Notification that the Registration Statement has become
           effective shall have been received by the Representatives and the
           Prospectus shall have been timely filed with the Commission in
           accordance with Section 6(a) of this Agreement.

                                       11
   12

                  (b) No order preventing or suspending the use of any
           preliminary prospectus or the Prospectus shall have been or shall be
           in effect and no order suspending the effectiveness of the
           Registration Statement shall be in effect and no proceedings for such
           purpose shall be pending before or threatened by the Commission, and
           any requests for additional information on the part of the Commission
           (to be included in the Registration Statement or the Prospectus or
           otherwise) shall have been complied with to the satisfaction of the
           Commission and the Representatives.

                  (c) The representations and warranties of the Company
           contained in this Agreement and in the certificates delivered
           pursuant to Section 5(d) shall be true and correct when made and on
           and as of each Closing Date as if made on such date and the Company
           shall have performed all covenants and agreements and satisfied all
           the conditions contained in this Agreement required to be performed
           or satisfied by it at or before such Closing Date.

                  (d) The Representatives shall have received on each Closing
           Date a certificate, addressed to the Representatives and dated such
           Closing Date, of the chief executive or chief operating officer and
           the chief financial officer or chief accounting officer of the
           Company to the effect that (i) the signers of such certificate have
           carefully examined the Registration Statement, the Prospectus and
           this Agreement and that the representations and warranties of the
           Company in this Agreement are true and correct on and as of such
           Closing Date with the same effect as if made on such Closing Date and
           the Company has performed all covenants and agreements and satisfied
           all conditions contained in this Agreement required to be performed
           or satisfied by it at or prior to such Closing Date, and (ii) no stop
           order suspending the effectiveness of the Registration Statement has
           been issued and to the best of their knowledge, no proceedings for
           that purpose have been instituted or are pending under the Securities
           Act.

                  (e) [Intentionally Blank]

                  (f) The Representatives shall have received on the Effective
           Date, at the time this Agreement is executed and on each Closing Date
           a signed letter from Ernst & Young LLP addressed to the
           Representatives and dated, respectively, the Effective Date, the date
           of this Agreement and each such Closing Date, in form and substance
           reasonably satisfactory to the Representatives, confirming that they
           are independent accountants within the meaning of the Securities Act
           and the Rules, that the response to Item 10 of the Registration
           Statement is correct insofar as it relates to them and stating in
           effect that:

                      (i) in their opinion the audited financial statements
                  and financial statement schedules included in the Registration
                  Statement and the Prospectus and reported on by them comply as
                  to form in all material respects with the applicable
                  accounting requirements of the Securities Act and the Rules;

                                       12
   13

                         (ii)  on the basis of a reading of the amounts included
                  in the Registration Statement and the Prospectus under the
                  headings "Summary Financial Information" and "Selected
                  Financial Data," carrying out certain procedures (but not an
                  examination in accordance with generally accepted auditing
                  standards) which would not necessarily reveal matters of
                  significance with respect to the comments set forth in such
                  letter, a reading of the minutes of the meetings of the
                  stockholders and directors of the Company, and inquiries of
                  certain officials of the Company who have responsibility for
                  financial and accounting matters of the Company as to
                  transactions and events subsequent to the date of the latest
                  audited financial statements, except as disclosed in the
                  Registration Statement and the Prospectus, nothing came to
                  their attention which caused them to believe that:

                                (A) the amounts in "Summary Financial
                         Information," and "Selected Financial Data" included in
                         the Registration Statement and the Prospectus do not
                         agree with the corresponding amounts in the audited and
                         unaudited financial statements from which such amounts
                         were derived; or

                                (B) with respect to the Company, there were, at
                         a specified date not more than five business days prior
                         to the date of the letter, any increases in the current
                         liabilities and long-term liabilities of the Company or
                         any decreases in net income or in working capital or
                         the stockholders' equity in the Company, as compared
                         with the amounts shown on the Company's audited balance
                         sheet for the fiscal year ended 1998 and the nine
                         months ended May 31, 1999 included in the Registration
                         Statement; and

                         (iii) they have performed certain other procedures as
                  may be permitted under Generally Acceptable Auditing Standards
                  as a result of which they determined that certain information
                  of an accounting, financial or statistical nature (which is
                  limited to accounting, financial or statistical information
                  derived from the general accounting records of the Company)
                  set forth in the Registration Statement and the Prospectus and
                  reasonably specified by the Representatives agrees with the
                  accounting records of the Company.

                         (iv)  based upon the procedures set forth in clauses
                  (ii) and (iii) above and a reading of the amounts included in
                  the Registration Statement under the headings "Summary
                  Financial and Other Data" and "Selected Financial Data"
                  included in the Registration Statement and Prospectus and a
                  reading of the financial statements from which certain of such
                  data were derived, nothing has come to their attention that
                  gives them reason to believe that the "Summary Financial and
                  Other Data" and "Selected Financial Data" included in the
                  Registration Statement and Prospectus do not comply as to the
                  form in all material respects with the applicable accounting
                  requirements of the Securities


                                       13
   14
                  Act and the Rules or that the information set forth therein is
                  not fairly stated in relation to the financial statements
                  included in the Registration Statement or Prospectus from
                  which certain of such data were derived are not in conformity
                  with generally accepted accounting principles applied on a
                  basis substantially consistent with that of the audited
                  financial statements included in the Registration Statement
                  and Prospectus.

                         References to the Registration Statement and the
                  Prospectus in this paragraph (f) are to such documents as
                  amended and supplemented at the date of the letter.

                  (g)    The Representatives shall have received on each Closing
           Date from Lanier Ford Shaver & Payne, P.C., counsel for the Company,
           an opinion, addressed to the Representatives and dated such Closing
           Date, and stating in effect that:

                         (i)   Each of the Company and its Subsidiaries has been
                  duly organized and is validly existing as a corporation in
                  good standing under the laws of the jurisdiction of its
                  incorporation. Each of the Company and its Subsidiaries is
                  duly qualified and in good standing as a foreign corporation
                  in each jurisdiction in which the character or location of its
                  assets or properties (owned, leased or licensed) or the nature
                  of its businesses makes such qualification necessary, except
                  for such jurisdictions where the failure to so qualify would
                  not have a Material Adverse Effect.

                         (ii)  Each of the Company and its Subsidiaries has all
                  requisite corporate power and authority to own, lease and
                  license its assets and properties and conduct its business as
                  now being conducted and as described in the Registration
                  Statement and the Prospectus and, with respect to the Company,
                  to enter into, deliver and perform this Agreement and to issue
                  and sell the Shares other than those required under the
                  Securities Act and state and foreign Blue Sky laws.

                         (iii) The Company has authorized and issued capital
                  stock as set forth in the Registration Statement and the
                  Prospectus under the caption "Capitalization"; the
                  certificates evidencing the Shares are in due and proper legal
                  form and have been duly authorized for issuance by the
                  Company; all of the outstanding shares of Common Stock of the
                  Company have been duly and validly authorized and issued and
                  are fully paid and nonassessable and none of them was issued
                  in violation of any preemptive or other similar right. The
                  Shares when issued and sold pursuant to this Agreement will be
                  duly and validly issued, outstanding, fully paid and
                  nonassessable and none of them will have been issued in
                  violation of any preemptive or other similar right. To the
                  best of such counsel's knowledge, except as disclosed in the
                  Registration Statement and the Prospectus, there are no
                  preemptive rights or any restriction upon the voting or
                  transfer of any securities of the Company pursuant to the
                  Company's


                                       14
   15

                  Certificate of Incorporation or by-laws or other governing
                  documents or any other instrument to which the Company is a
                  party or by which it may be bound. To the best of such
                  counsel's knowledge, except as disclosed in the Registration
                  Statement and the Prospectus, there is no outstanding option,
                  warrant or other right calling for the issuance of, and no
                  commitment, plan or arrangement to issue, any share of stock
                  of the Company or any security convertible into, exercisable
                  for, or exchangeable for stock of the Company. The Common
                  Stock and the Shares conform in all material respects to the
                  descriptions thereof contained in the Registration Statement
                  and the Prospectus. The issued and outstanding shares of
                  capital stock of each of the Company's Subsidiaries have been
                  duly authorized and validly issued, are fully paid and
                  nonassessable and are owned by the Company or by another
                  wholly owned subsidiary of the Company, free and clear of any
                  perfected security interest or, to the knowledge of such
                  counsel, any other security interests, liens, encumbrances,
                  equities or claims, other than those contained in the
                  Registration Statement and the Prospectus.

                         (iv) Each of the Lock-Up Agreements executed by the
                  Company's directors and officers, the Parent and the executive
                  directors and officers of Parent has been duly and validly
                  delivered by such persons and constitutes the legal, valid and
                  binding obligation of each such person enforceable against
                  each such person in accordance with its terms, except as the
                  enforceability thereof may be limited by applicable
                  bankruptcy, insolvency, reorganization, moratorium or other
                  similar laws affecting the enforcement of creditors' rights
                  generally and by general equitable principles.

                         (v)  All necessary corporate action has been duly and
                  validly taken by the Company and the Parent to authorize the
                  execution, delivery and performance of this Agreement and the
                  issuance and sale of the Shares. This Agreement has been duly
                  and validly authorized, executed and delivered by the Company
                  and this Agreement constitutes the legal, valid and binding
                  obligation of the Company enforceable against the Company in
                  accordance with their respective terms except (A) as such
                  enforceability may be limited by applicable bankruptcy,
                  insolvency, reorganization, moratorium or other similar laws
                  affecting the enforcement of creditors' rights generally and
                  by general equitable principles and (B) to the extent that
                  rights to indemnity or contribution under this Agreement may
                  be limited by Federal or state securities laws or the public
                  policy underlying such laws.

                         (vi) Neither the execution, delivery and performance of
                  this Agreement by the Company nor the consummation of any of
                  the transactions contemplated hereby (including, without
                  limitation, the issuance and sale by the Company of the
                  Shares) will give rise to a right to terminate or accelerate
                  the due date of any payment due under, or conflict with or
                  result in the breach of any term or provision of, or
                  constitute a default (or any event which with notice


                                       15
   16

                  or lapse of time, or both, would constitute a default) under,
                  or require consent or waiver under, or result in the execution
                  or imposition of any lien, charge or encumbrance upon any
                  properties or assets of the Company or any Subsidiary pursuant
                  to the terms of any indenture, mortgage, deed trust, note or
                  other agreement or instrument of which such counsel is aware
                  and to which the Company or any Subsidiary is a party or by
                  which either the Company or any Subsidiary or any of their
                  properties or businesses is bound, or any franchise, license,
                  permit, judgment, decree, order, statute, rule or regulation
                  of which such counsel is aware or violate any provision of the
                  charter or by-laws of the Company or any Subsidiary.

                         (vii)  To the best of such counsel's knowledge, no
                  default exists, and no event has occurred which with notice or
                  lapse of time, or both, would constitute a default, in the due
                  performance and observance of any term, covenant or condition
                  by the Company of any indenture, mortgage, deed of trust, note
                  or any other agreement or instrument to which the Company is a
                  party or by which it or any of its assets or properties or
                  businesses may be bound or affected, where the consequences of
                  such default would have a Material Adverse Effect.

                         (viii) To the best of such counsel's knowledge, the
                  Company and its Subsidiaries are not in violation of any term
                  or provision of its charter or by-laws or any franchise,
                  license, permit, judgment, decree, order, statute, rule or
                  regulation, where the consequences of such violation would
                  have a Material Adverse Effect.

                         (ix)   No consent, approval, authorization or order of
                  any court or governmental agency or regulatory body is
                  required for the execution, delivery or performance of this
                  Agreement by the Company or the consummation of the
                  transactions contemplated hereby or thereby, except such as
                  have been obtained under the Securities Act and such as may be
                  required under state securities or Blue Sky laws in connection
                  with the purchase and distribution of the Shares by the
                  several Underwriters.

                         (x)    Other than as set forth in the Registration
                  Statement and the Prospectus, to the best of such counsel's
                  knowledge, there is no litigation or governmental or other
                  proceeding or investigation, before any court or before or by
                  any public body or board pending or threatened against, or
                  involving the assets, properties or businesses of, the Company
                  which would have a Material Adverse Effect.

                         (xi)   The statements in the Prospectus under the
                  captions "Description of Capital Stock," "Liquidity and
                  Capital Resources," "Risk Factors-If Customers Terminate or
                  Modify Existing Contracts, It Could Adversely Affect Our
                  Earnings," "Shares Eligible for Future Sale,"
                  "Management-Director

                                       16
   17


                  Compensation," "Management-Employment Agreements,"
                  "Management-Employee Benefit Plans," and "Relationships and
                  Related Transactions," insofar as such statements constitute a
                  summary of documents referred to therein or matters of law,
                  are fair summaries in all material respects and accurately
                  present the information called for with respect to such
                  documents and matters. Accurate copies of all contracts and
                  other documents required to be filed as exhibits to, or
                  described in, the Registration Statement have been so filed
                  with the Commission or are fairly described in the
                  Registration Statement, as the case may be.

                         (xii)  The Registration Statement, all preliminary
                  prospectuses and the Prospectus and each amendment or
                  supplement thereto (except for the financial statements and
                  schedules and other financial and statistical data included
                  therein, as to which such counsel expresses no opinion) comply
                  as to form in all material respects with the requirements of
                  the Securities Act and the Rules.

                         (xiii) The Registration Statement is effective under
                  the Securities Act, and no stop order suspending the
                  effectiveness of the Registration Statement has been issued
                  and no proceedings for that purpose have been instituted or
                  are threatened, pending or contemplated. Any required filing
                  of the Prospectus and any supplement thereto pursuant to Rule
                  424(b) under the Securities Act has been made in the manner
                  and within the time period required by such Rule 424(b).

                         (xiv)  The Shares have been approved for listing on the
                  Nasdaq National Market.

                         (xv)   The capital stock of the Company conforms in all
                  material respects to the description thereof contained in the
                  Prospectus under the caption "Description of Capital Stock."

                         (xvi)  The Company is not an "investment company" or an
                  entity controlled by an "investment company" as such terms are
                  defined in the Investment Company Act of 1940, as amended.

                         (xvii) The agreements to which the Company or any of
                  the Subsidiaries is a party described in the Registration
                  Statement and Prospectus are valid agreements, enforceable by
                  the Company and the Subsidiaries (as applicable), except as
                  the enforcement thereof may be limited by applicable
                  bankruptcy, insolvency, reorganization, moratorium or other
                  similar laws relating to or affecting creditors' rights
                  generally or by general equitable principles.

                         (xviii)(A) Each of the Company and its Subsidiaries is
                  in compliance in all material respects with any and all
                  applicable Environmental Laws; (B) none of the Company or its
                  Subsidiaries has received any notice from any governmental

                                       17
   18


                  authority or third party of an asserted claim under any
                  Environmental Law; (C) each of the Company and its
                  Subsidiaries has received all permits, licenses or other
                  approvals required of it under applicable Environmental Laws
                  to conduct its business and is in compliance with all terms
                  and conditions of any such permit, license or approval, except
                  where such failure to receive required permits, licenses or
                  other approvals or failure to comply with the terms and
                  conditions of such permits, licenses or other approvals would
                  not, singly or in the aggregate, have a Material Adverse
                  Effect; and (D) no property which is or has been owned, leased
                  or occupied by the Company or its Subsidiaries has been
                  designated as a Superfund site pursuant to the Comprehensive
                  Environmental Response, Compensation of Liability Act of 1980,
                  as amended (42 U.S.C. Section 9601, et seq.), or otherwise
                  designated as a contaminated site under applicable state or
                  local law.

                  To the extent deemed advisable by such counsel, they may rely
as to matters of fact on certificates of responsible officers of the Company and
public officials and on the opinions of other counsel satisfactory to the
Representatives as to matters which are governed by laws other than the laws of
the State of Alabama, the General Corporation Law of the State of Delaware and
the Federal laws of the United States; provided that such counsel shall state
that in their opinion the Underwriters and they are justified in relying on such
other opinions. Copies of such certificates and other opinions shall be
furnished to the Representatives and counsel for the Underwriters.

                  In addition, such counsel shall state that such counsel has
participated in conferences with officers and other representatives of the
Company, representatives of the Representatives and representatives of the
independent certified public accountants of the Company, at which conferences
the contents of the Registration Statement and the Prospectus and related
matters were discussed and, although such counsel is not passing upon and does
not assume any responsibility for the accuracy, completeness or fairness of the
statements contained in the Registration Statement and the Prospectus (except as
specified in the foregoing opinion), on the basis of the foregoing, no facts
have come to the attention of such counsel which lead such counsel to believe
that the Registration Statement at the time it became effective (except with
respect to the financial statements and notes and schedules thereto and other
financial data, as to which such counsel need express no belief) contained any
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,
or that the Prospectus as amended or supplemented (except with respect to the
financial statements, notes and schedules thereto and other financial data, as
to which such counsel need make no statement) on the date thereof contained any
untrue statement of a material fact or omitted to state a material fact
necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading.

                  (h) All proceedings taken in connection with the sale of the
           Firm Shares and the Option Shares as herein contemplated shall be
           reasonably satisfactory in form and substance to the Representatives,
           and their counsel and the Underwriters shall have received from
           Alston & Bird LLP a favorable opinion, addressed to the
           Representatives and dated such Closing Date, with respect to the
           Shares, the Registration Statement and

                                       18
   19

           the Prospectus, and such other related matters, as the
           Representatives may reasonably request, and the Company shall have
           furnished to Alston & Bird LLP such documents as they may reasonably
           request for the purpose of enabling them to pass upon such matters.

                  (i) If the Shares have been qualified for sale in Florida, the
           Representatives shall have received on each Closing Date
           certificates, addressed to the Representatives, and dated such
           Closing Date, of an executive officer of the Company, to the effect
           that the signer of such certificate has reviewed and understands the
           provisions of Section 517.075 of the Florida Statutes, and represents
           that the Company has complied, and at all times will comply, with all
           provisions of Section 517.075 and further, that as of such Closing
           Date, neither the Company nor any of its affiliates does business
           with the government of Cuba or with any person or affiliate located
           in Cuba.

                  (j) The Representatives shall have received copies of the
           Lock-up Agreements executed by each entity or person described in
           Section 4(n).

                  (k) The Company and the Parent shall have furnished or caused
           to be furnished to the Representatives such further certificates or
           documents as the Representatives shall have reasonably requested.

                  6.  Covenants of the Company.

                  (a) The Company covenants and agrees as follows:

                      (i)  The Company shall prepare the Prospectus in a form
                  approved by the Representatives and file such Prospectus
                  pursuant to Rule 424(b) under the Securities Act not later
                  than the 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.

                      (ii) The Company shall promptly advise the
                  Representatives in writing (i) when any amendment to the
                  Registration Statement shall have become effective, (ii) of
                  any request by the Commission for any amendment of the
                  Registration Statement or the Prospectus or for any additional
                  information, (iii) of the prevention or suspension of the use
                  of any preliminary prospectus or the Prospectus or of the
                  issuance by the Commission of any stop order suspending the
                  effectiveness of the Registration Statement or the institution
                  or threatening of any proceeding for that purpose and (iv) of
                  the receipt by the Company of any notification with respect to
                  the suspension of the qualification of the Shares for sale in
                  any jurisdiction or the initiation or threatening of any
                  proceeding for such purpose. The Company shall not file any
                  amendment of the Registration Statement or supplement to the
                  Prospectus unless the Company has furnished the
                  Representatives a copy for its review prior to filing and
                  shall not

                                       19
   20

                  file any such proposed amendment or supplement to which the
                  Representatives reasonably object. The Company shall use its
                  best efforts to prevent the issuance of any such stop order
                  and, if issued, to obtain as soon as possible the withdrawal
                  thereof.

                         (iii) If, at any time when a prospectus relating to the
                  Shares is required to be delivered under the Securities Act
                  and the Rules, any event occurs as a result of which the
                  Prospectus as then amended or supplemented would include any
                  untrue statement of a material fact or omit to state any
                  material fact necessary to make the statements therein in the
                  light of the circumstances under which they were made not
                  misleading, or if it shall be necessary to amend or supplement
                  the Prospectus to comply with the Securities Act or the Rules,
                  the Company promptly shall prepare and file with the
                  Commission, subject to the second sentence of paragraph (ii)
                  of this Section 7(a), an amendment or supplement which shall
                  correct such statement or omission or an amendment which shall
                  effect such compliance.

                         (iv)  The Company shall make generally available to its
                  security holders and to the Representatives as soon as
                  practicable, but not later than 45 days after the end of the
                  12-month period beginning at the end of the fiscal quarter of
                  the Company during which the Effective Date occurs (or 90 days
                  if such 12-month period coincides with the Company's fiscal
                  year), an earning statement (which need not be audited) of the
                  Company, covering such 12-month period, which shall satisfy
                  the provisions of Section 11(a) of the Securities Act or Rule
                  158 of the Rules.

                         (v)   The Company shall furnish to the Representatives
                  and counsel for the Underwriters, without charge, signed
                  copies of the Registration Statement (including all exhibits
                  thereto and amendments thereof) and to each other Underwriter
                  a copy of the Registration Statement (without exhibits
                  thereto) and all amendments thereof and, so long as delivery
                  of a prospectus by an Underwriter or dealer may be required by
                  the Securities Act or the Rules, as many copies of any
                  preliminary prospectus and the Prospectus and any amendments
                  thereof and supplements thereto as the Representatives may
                  reasonably request.

                         (vi)  The Company shall cooperate with the
                  Representatives and their counsel in endeavoring to qualify
                  the Shares for offer and sale in connection with the offering
                  under the laws of such jurisdictions as the Representatives
                  may designate and shall maintain such qualifications in effect
                  so long as required for the distribution of the Shares;
                  provided, however, that the Company shall not be required in
                  connection therewith, as a condition thereof, to qualify as a
                  foreign corporation or to execute a general consent to service
                  of process in any jurisdiction or subject itself to taxation
                  as doing business in any jurisdiction.

                                       20
   21

                         (vii)  For a period of five years after the date of
                  this Agreement, the Company shall supply to the
                  Representatives, and to each other Underwriter who may so
                  request in writing, copies of such financial statements and
                  other periodic and special reports as the Company may from
                  time to time distribute generally to the holders of any class
                  of its capital stock and to furnish to the Representatives a
                  copy of each annual or other report it shall be required to
                  file with the Commission (including the Report on Form SR
                  required by Rule 463 of the Rules).

                         (viii) Without the prior written consent of CIBC World
                  Markets Corp., for a period of 180 days after the date of this
                  Agreement, the Company and each of its individual directors
                  and executive officers shall not issue, sell or register with
                  the Commission (other than on Form S-8 or on any successor
                  form), or otherwise dispose of, directly or indirectly, any
                  equity securities of the Company (or any securities
                  convertible into, exercisable for or exchangeable for equity
                  securities of the Company), except for the issuance of the
                  Shares pursuant to the Registration Statement and the issuance
                  of shares pursuant to the Company's existing stock option plan
                  or bonus plan as described in the Registration Statement and
                  the Prospectus. In the event that during this period, (i) any
                  shares are issued pursuant to the Company's existing stock
                  option plan or bonus plan that are exercisable during such 180
                  day period or (ii) any registration is effected on Form S-8 or
                  on any successor form relating to shares that are exercisable
                  during such 180 period, the Company shall obtain the written
                  agreement of such grantee or purchaser or holder of such
                  registered securities that, for a period of 180 days after the
                  date of this Agreement, such person will not, without the
                  prior written consent of CIBC World Markets Corp., offer for
                  sale, sell, distribute, grant any option for the sale of, or
                  otherwise dispose of, directly or indirectly, or exercise any
                  registration rights with respect to, any shares of Common
                  Stock (or any securities convertible into, exercisable for, or
                  exchangeable for any shares of Common Stock) owned by such
                  person.

                         (ix)   On or before completion of this offering, the
                  Company shall make all filings required under applicable
                  securities laws and by the Nasdaq National Market (including
                  any required registration under the Exchange Act).

                         (x)    The Company shall file timely and accurate
                  reports in accordance with the provisions of Florida Statutes
                  Section 517.05, or any successor provision, and any regulation
                  promulgated thereunder, if at any time after the Effective
                  Date, the Company or any of its affiliates commences engaging
                  in business with the government of Cuba or any person or
                  affiliate located in Cuba.

                         (xi)   The Company will apply the net proceeds from the
                  offering of the Shares in the manner set forth under "Use of
                  Proceeds" in the Prospectus.

                                       21
   22

                  (b) The Company agrees to pay, or reimburse if paid by the
           Representatives, whether or not the transactions contemplated hereby
           are consummated or this Agreement is terminated, all costs and
           expenses incident to the public offering of the Shares and the
           performance of the obligations of the Company under this Agreement
           including those relating to: (i) the preparation, printing, filing
           and distribution of the Registration Statement including all exhibits
           thereto, each preliminary prospectus, the Prospectus, all amendments
           and supplements to the Registration Statement and the Prospectus, and
           the printing, filing and distribution of this Agreement; (ii) the
           preparation and delivery of certificates for the Shares to the
           Underwriters; (iii) the registration or qualification of the Shares
           for offer and sale under the securities or Blue Sky laws of the
           various jurisdictions referred to in Section 7(a)(vi), including the
           reasonable fees and disbursements of counsel for the Underwriters in
           connection with such registration and qualification and the
           preparation, printing, distribution and shipment of preliminary and
           supplementary Blue Sky memoranda; (iv) the furnishing (including
           costs of shipping and mailing) to the Representatives and to the
           Underwriters of copies of each preliminary prospectus, the Prospectus
           and all amendments or supplements to the Prospectus, and of the
           several documents required by this Section to be so furnished, as may
           be reasonably requested for use in connection with the offering and
           sale of the Shares by the Underwriters or by dealers to whom Shares
           may be sold; (v) the filing fees of the NASD in connection with its
           review of the terms of the public offering and reasonable fees and
           disbursements of counsel for the Underwriters in connection with such
           review; (vi) the furnishing (including costs of shipping and mailing)
           to the Representatives and to the Underwriters of copies of all
           reports and information required by Section 6(a)(vii); (vii)
           inclusion of the Shares for quotation on the Nasdaq National Market;
           and (viii) all transfer taxes, if any, with respect to the sale and
           delivery of the Shares by the Company to the Underwriters. Subject to
           the provisions of Section 9, the Underwriters agree to pay, whether
           or not the transactions contemplated hereby are consummated or this
           Agreement is terminated, all costs and expenses incident to the
           performance of the obligations of the Underwriters under this
           Agreement not payable by the Company pursuant to the preceding
           sentence, including, without limitation, the fees and disbursements
           of counsel for the Underwriters.

                  7.  Indemnification.

                  (a) The Company agrees to indemnify and hold harmless each
           Underwriter and each person, if any, who controls any Underwriter
           within the meaning of Section 15 of the Securities Act or Section 20
           of the Exchange Act against any and all losses, claims, damages and
           liabilities, joint or several (including any reasonable
           investigation, legal and other expenses incurred in connection with,
           and any amount paid in settlement of, any action, suit or proceeding
           or any claim asserted), to which they, or any of them, may become
           subject under the Securities Act, the Exchange Act or other Federal
           or state law or regulation, at common law or otherwise, insofar as
           such losses, claims, damages or liabilities arise out of or are based
           upon (i) any untrue statement or alleged


                                       22
   23

           untrue statement of a material fact contained in any preliminary
           prospectus, the Registration Statement or the Prospectus or any
           amendment thereof or supplement thereto, or arise out of or are based
           upon any omission or alleged omission to state therein a material
           fact required to be stated therein or necessary to make the
           statements therein not misleading, (ii) in whole or in part upon any
           breach of the representations and warranties set forth in Section 4
           hereof, or (iii) in whole or in part upon any failure of the Company
           to perform any of its obligations hereunder or under law; provided,
           however, that such indemnity shall not inure to the benefit of any
           Underwriter (or any person controlling such Underwriter) on account
           of any losses, claims, damages or liabilities arising from the sale
           of the Shares to any person by such Underwriter if such untrue
           statement or omission or alleged untrue statement or omission was
           made in such preliminary prospectus, the Registration Statement or
           the Prospectus, or such amendment or supplement, in reliance upon and
           in conformity with information furnished in writing to the Company by
           the Representatives on behalf of any Underwriter specifically for use
           therein. This indemnity agreement will be in addition to any
           liability which the Company may otherwise have.

                  (b) Each Underwriter agrees, severally and not jointly, to
           indemnify and hold harmless the Company and each person, if any, who
           controls the Company within the meaning of Section 15 of the
           Securities Act or Section 20 of the Exchange Act, each director of
           the Company, and each officer of the Company who signs the
           Registration Statement, to the same extent as the foregoing indemnity
           from the Company to each Underwriter, but only insofar as such
           losses, claims, damages or liabilities arise out of or are based upon
           any untrue statement or omission or alleged untrue statement or
           omission which was made in any preliminary prospectus, the
           Registration Statement or the Prospectus, or any amendment thereof or
           supplement thereto, contained in the last paragraph of the cover page
           and the statements contained under the caption "Underwriting" in the
           Prospectus; provided, however, that the obligation of each
           Underwriter to indemnify the Company (including any controlling
           person, director or officer thereof) shall be limited to the net
           proceeds received by the Company from such Underwriter.

                  (c) Any party that proposes to assert the right to be
           indemnified under this Section will, promptly after receipt of notice
           of commencement of any action, suit or proceeding against such party
           in respect of which a claim is to be made against an indemnifying
           party or parties under this Section, notify each such indemnifying
           party of the commencement of such action, suit or proceeding,
           enclosing a copy of all papers served. No indemnification provided
           for in Section 8(a) or 8(b) shall be available to any party who shall
           fail to give notice as provided in this Section 8(c) if the party to
           whom notice was not given was unaware of the proceeding to which such
           notice would have related and was prejudiced by the failure to give
           such notice but the omission so to notify such indemnifying party of
           any such action, suit or proceeding shall not relieve it from any
           liability that it may have to any indemnified party for contribution
           or otherwise than under this Section. In case any such action, suit
           or proceeding shall be brought against any indemnified party and it
           shall notify the indemnifying party of

                                       23
   24

           the commencement thereof, the indemnifying party shall be entitled to
           participate in, and, to the extent that it shall wish, jointly with
           any other indemnifying party similarly notified, to assume the
           defense thereof, with counsel reasonably satisfactory to such
           indemnified party, and after notice from the indemnifying party to
           such indemnified party of its election so to assume the defense
           thereof and the approval by the indemnified party of such counsel,
           the indemnifying party shall not be liable to such indemnified party
           for any legal or other expenses, except as provided below and except
           for the reasonable costs of investigation subsequently incurred by
           such indemnified party in connection with the defense thereof. The
           indemnified party shall have the right to employ its counsel in any
           such action, but the fees and expenses of such counsel shall be at
           the expense of such indemnified party unless (i) the employment of
           counsel by such indemnified party has been authorized in writing by
           the indemnifying parties, (ii) the indemnified party shall have
           reasonably concluded that there may be a conflict of interest between
           the indemnifying parties and the indemnified party in the conduct of
           the defense of such action (in which case the indemnifying parties
           shall not have the right to direct the defense of such action on
           behalf of the indemnified party) or (iii) the indemnifying parties
           shall not have employed counsel to assume the defense of such action
           within a reasonable time after notice of the commencement thereof, in
           each of which cases the fees and expenses of counsel shall be at the
           expense of the indemnifying parties. An indemnifying party shall not
           be liable for any settlement of any action, suit, proceeding or claim
           effected without its written consent, which consent shall not be
           unreasonably withheld or delayed.

                  8. Contribution. In order to provide for just and equitable
contribution in circumstances in which the indemnification provided for in
Section 7(a) or 7(b) is due in accordance with its terms but for any reason is
held to be unavailable to or insufficient to hold harmless an indemnified party
under Section 7(a) or 7(b), then each indemnifying party shall contribute to the
aggregate losses, claims, damages and liabilities (including any investigation,
legal and other expenses reasonably incurred in connection with, and any amount
paid in settlement of, any action, suit or proceeding or any claims asserted,
but after deducting any contribution received by any person entitled hereunder
to contribution from any person who may be liable for contribution) to which the
indemnified party may be subject in such proportion as is appropriate to reflect
the relative benefits received by the Company on the one hand and the
Underwriters on the other from the offering of the Shares or, if such allocation
is not permitted by applicable law or indemnification is not available as a
result of the indemnifying party not having received notice as provided in
Section 7 hereof, in such proportion as is appropriate to reflect not only the
relative benefits referred to above but also the relative fault of the Company
on the one hand and the Underwriters on the other in connection with the
statements or omissions which resulted in such losses, claims, damages,
liabilities or expenses, as well as any other relevant equitable considerations.
The relative benefits received by the Company and the Underwriters shall be
deemed to be in the same proportion as (x) the total proceeds from the offering
(net of underwriting discounts but before deducting expenses) received by the
Company, as set forth in the table on the cover page of the Prospectus, bear to
(y) the underwriting discounts received by the Underwriters, as set forth in the
table on the cover page of the Prospectus. The relative fault of the Company or
the Underwriters shall be determined by reference to, among

                                       24
   25

other things, whether the untrue or alleged untrue statement of a material fact
related to information supplied by the Company or the Underwriters and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. The Company and the Underwriters
agree that it would not be just and equitable if contribution pursuant to this
Section 8 were 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 account of the equitable considerations referred to above.
Notwithstanding the provisions of this Section 8, (i) in no case shall any
Underwriter (except as may be provided in the Agreement Among Underwriters) be
liable or responsible for any amount in excess of the underwriting discount
applicable to the Shares purchased by such Underwriter hereunder; and (ii) the
Company shall be liable and responsible for any amount in excess of such
underwriting discount; provided, however, that 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. For purposes of this Section 8, each person, if
any, who controls an Underwriter within the meaning of Section 15 of the
Securities Act or Section 20(a) of the Exchange Act shall have the same rights
to contribution as such Underwriter, and each person, if any, who controls the
Company within the meaning of the Section 15 of the Securities Act or Section
20(a) of the Exchange Act, each officer of the Company who shall have signed the
Registration Statement and each director of the Company shall have the same
rights to contribution as the Company, subject in each case to clauses (i) and
(ii) in the immediately preceding sentence of this Section 8. Any party entitled
to contribution will, promptly after receipt of notice of commencement of any
action, suit or proceeding against such party in respect of which a claim for
contribution may be made against another party or parties under this Section,
notify such party or parties from whom contribution may be sought, but the
omission so to notify such party or parties from whom contribution may be sought
shall not relieve the party or parties from whom contribution may be sought from
any other obligation it or they may have hereunder or otherwise than under this
Section. No party shall be liable for contribution with respect to any action,
suit, proceeding or claim settled without its written consent. The Underwriter's
obligations to contribute pursuant to this Section 8 are several in proportion
to their respective underwriting commitments and not joint.

                  9.  Termination. This Agreement may be terminated with respect
to the Shares to be purchased on a Closing Date by the Representatives by
notifying the Company at any time

                  (a) in the absolute discretion of the Representatives at or
           before any Closing Date: (i) if on or prior to such date, any
           domestic or international event or act or occurrence has materially
           disrupted, or in the opinion of the Representatives will in the
           future materially disrupt, the securities markets; (ii) if there has
           occurred any new outbreak or material escalation of hostilities or
           other calamity or crisis the effect of which on the financial markets
           of the United States is such as to make it, in the judgment of the
           Representatives, inadvisable to proceed with the offering; (iii) if
           there shall be such a material adverse change in general financial,
           political or economic conditions or the effect of international
           conditions on the financial markets in the United States is such as
           to make it, in the judgment of the Representatives, inadvisable or

                                       25
   26

           impracticable to market the Shares; (iv) if trading in the Shares has
           been suspended by the Commission or trading generally on the New York
           Stock Exchange, Inc., on the American Stock Exchange, Inc. or the
           Nasdaq National Market has been suspended or limited, or minimum or
           maximum ranges for prices for securities shall have been fixed, or
           maximum ranges for prices for securities have been required, by said
           exchanges or by order of the Commission, the National Association of
           Securities Dealers, Inc., or any other governmental or regulatory
           authority; or (v) if a banking moratorium has been declared by any
           state or Federal authority; or (vi) if, in the judgment of the
           Representatives, there has occurred a Material Adverse Effect, or

                  (b) at or before any Closing Date, that any of the conditions
           specified in Section 5 shall not have been fulfilled when and as
           required by this Agreement.

                  If this Agreement is terminated pursuant to any of its
provisions, the Company shall not be under any liability to any Underwriter, and
no Underwriter shall be under any liability to the Company, except that (y) if
this Agreement is terminated by the Representatives or the Underwriters because
of any failure, refusal or inability on the part of the Company to comply with
the terms or to fulfill any of the conditions of this Agreement, the Company
will reimburse the Underwriters for all out-of-pocket expenses (including the
reasonable fees and disbursements of their counsel) incurred by them in
connection with the proposed purchase and sale of the Shares or in contemplation
of performing their obligations hereunder and (z) no Underwriter who shall have
failed or refused to purchase the Shares agreed to be purchased by it under this
Agreement, without some reason sufficient hereunder to justify cancellation or
termination of its obligations under this Agreement, shall be relieved of
liability to the Company or to the other Underwriters for damages occasioned by
its failure or refusal.

                  10. Substitution of Underwriters. If one or more of the
Underwriters shall fail (other than for a reason sufficient to justify the
cancellation or termination of this Agreement under Section 10) to purchase on
any Closing Date the Shares agreed to be purchased on such Closing Date by such
Underwriter or Underwriters, the Representatives may find one or more substitute
underwriters to purchase such Shares or make such other arrangements as the
Representatives may deem advisable or one or more of the remaining Underwriters
may agree to purchase such Shares in such proportions as may be approved by the
Representatives, in each case upon the terms set forth in this Agreement. If no
such arrangements have been made by the close of business on the business day
following such Closing Date,

                  (a) if the number of Shares to be purchased by the defaulting
           Underwriters on such Closing Date shall not exceed 10% of the Shares
           that all the Underwriters are obligated to purchase on such Closing
           Date, then each of the nondefaulting Underwriters shall be obligated
           to purchase such Shares on the terms herein set forth in proportion
           to their respective obligations hereunder; provided, that in no event
           shall the maximum number of Shares that any Underwriter has agreed to
           purchase pursuant to Section 1 be increased pursuant to this Section
           11 by more than one-ninth of such number of Shares without the
           written consent of such Underwriter, or

                                       26
   27

                  (b) if the number of Shares to be purchased by the defaulting
           Underwriters on such Closing Date shall exceed 10% of the Shares that
           all the Underwriters are obligated to purchase on such Closing Date,
           then the Company shall be entitled to one additional business day
           within which it may, but is not obligated to, find one or more
           substitute underwriters reasonably satisfactory to the
           Representatives to purchase such Shares upon the terms set forth in
           this Agreement.

                  In any such case, either the Representatives or the Company
shall have the right to postpone the applicable Closing Date for a period of not
more than five business days in order that necessary changes and arrangements
(including any necessary amendments or supplements to the Registration Statement
or Prospectus) may be effected by the Representatives and the Company. If the
number of Shares to be purchased on such Closing Date by such defaulting
Underwriter or Underwriters shall exceed 10% of the Shares that all the
Underwriters are obligated to purchase on such Closing Date, and none of the
nondefaulting Underwriters or the Company shall make arrangements pursuant to
this Section within the period stated for the purchase of the Shares that the
defaulting Underwriters agreed to purchase, this Agreement shall terminate with
respect to the Shares to be purchased on such Closing Date without liability on
the part of any nondefaulting Underwriter to the Company and without liability
on the part of the Company, except in both cases as provided in Sections 6(b),
7, 8 and 9. The provisions of this Section shall not in any way affect the
liability of any defaulting Underwriter to the Company or the nondefaulting
Underwriters arising out of such default. A substitute underwriter hereunder
shall become an Underwriter for all purposes of this Agreement.

                  11. Miscellaneous. The respective agreements, representations,
warranties, indemnities and other statements of the Company or its respective
officers and of the Underwriters set forth in or made pursuant to this Agreement
shall remain in full force and effect, regardless of any investigation made by
or on behalf of any Underwriter or the Company or any of the officers, directors
or controlling persons referred to in Sections 7 and 8 hereof, and shall survive
delivery of and payment for the Shares. The provisions of Sections 6(b), 7, 8
and 9 shall survive the termination or cancellation of this Agreement.

                  This Agreement has been and is made for the benefit of the
Underwriters and the Company and their respective successors and assigns, and,
to the extent expressed herein, for the benefit of persons controlling any of
the Underwriters, or the Company, and directors and officers of the Company, and
their respective successors and assigns, and no other person shall acquire or
have any right under or by virtue of this Agreement. The term "successors and
assigns" shall not include any purchaser of Shares from any Underwriter merely
because of such purchase.

                  All notices and communications hereunder shall be in writing
and mailed or delivered or by telephone or telegraph if subsequently confirmed
in writing, (a) if to the Representatives, c/o CIBC World Markets Corp., CIBC
World Markets Tower, World Financial Center, New York, New York 10281 Attention:
Peter J. Crowley, with a copy to Alston & Bird LLP, One Atlantic Center, 1201
West Peachtree Street, Atlanta, Georgia 30309-3424 Attention: J. Vaughan Curtis,
and (b) if to the Company, to its agent for service as such agent's address

                                       27
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appears on the cover page of the Registration Statement with a copy to Lanier
Ford Shaver & Payne, P.C., P.O. Box 2087, Huntsville, Alabama 35804 Attention:
John R. Wynn.

                  This Agreement shall be governed by and construed in
accordance with the laws of the State of New York without regard to principles
of conflict of laws.

                  This Agreement may be signed in any number of counterparts,
each of which shall be an original, with the same effect as if the signatures
thereto and hereto were upon the same instrument.


                                       28
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           Please confirm that the foregoing correctly sets forth the agreement
among us.

                                             Very truly yours,

                                             NICHOLS TXEN CORPORATION

                                             By
                                               --------------------------
                                               Title:



Confirmed:

CIBC WORLD MARKETS CORP.

- -----------------------------------

Acting severally on behalf of itself and as representative of the several
Underwriters named in Schedule I annexed hereto.

By CIBC WORLD MARKETS CORP.

By
  ------------------------------
  Title:


                                       29
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                                   SCHEDULE I





                                                                                   Number of
                                                                                Firm Shares to
        Name                                                                     Be Purchased
        ----                                                                   ------------
                                                                             
        CIBC World Markets Corp.
        Friedman, Billings, Ramsey & Co.
        The Robinson-Humphrey Company, LLC
        -----------------------------------











                                                                        ---------------

                                                                =======
                                                          Total




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