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                                                                   EXHIBIT 10.15

                               OFFICE SPACE LEASE

This lease, made and entered into as of this 6th day of May, 1998, by and
between Raytheon Engineers & Constructors, Inc. ("Landlord"), and Nichols TXEN
Corporation ("Tenant").

                                   Witnesseth:

For and in consideration of the mutual promises and covenants hereinafter set
forth, Landlord and Tenant hereby agree as follows:

ARTICLE I --DEFINITIONS

In addition to other definitions set forth herein, the following terms shall
have the following meanings as used throughout this lease:

1.01     ADDITIONAL RENT. The amounts specified in Sections 3.02 (increases in
         base rent) and 3.03 (the monthly estimate and annual payment) payable
         by Tenant to Landlord.

1.02     ADJUSTMENT DATE. Intentionally omitted.

1.03     AGENT. Daniel Realty Services, L.L.C. and its successors and assigns.

1.04     AGENT'S MAILING ADDRESS. P.O. Box 385001, Birmingham, AL 35238-5001.

1.05     APPLICABLE RATE. The per annum rate of interest equal to the lesser of
         (i) five percent (5%) above the prime or "base" rate of interest
         announced or published from time to time by Citibank of New York or
         (ii) the maximum interest rate permitted to be charged by law.

1.06     BASE RENT. $343,245.40 per year, being at the rate of $16.30 per
         Rentable Square Foot of space in the Premises.

1.07     BASE YEAR. The calendar year 1998.

1.08     BUILDING. Meadow Brook 300 Landlord reserves the right to change the
         name of the Building from time to time.

1.09     CASUALTY. Any damage or destruction to the Building or the Premises or
         any part thereof (other than to Tenant's Personal Property) caused by
         or resulting from any fire, windstorm, tornado, earthquake, or other
         casualty.


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1.10     COMMENCEMENT DATE. Subject to the provisions of Section 2.02 hereof,
         the first to occur of the following: (a) July 1, 1998, or (b) the date
         on which the Tenant occupies the Premises to conduct normal business
         operations.

1.11     COMMON AREAS. All areas, improvements, equipment and amenities which,
         from time to time may be designated by Landlord for use, in common, by
         all tenants of the Building, including, without limitation, all
         Building entrances and exits, lobbies, hallways, corridors, elevators,
         stairs, restrooms, janitor's closets, parking areas, garage access
         roads, driveways, walkways, retaining walls, courtyards, landscaped
         areas, loading docks and facilities, service drives, tunnels, ramps,
         atriums, signs and trash receptacles.

1.12     EXPIRATION DATE. Nine (9) months following the Commencement Date,
         unless otherwise sooner terminated in accordance with the provisions of
         this Lease.

1.13     INDEX. Intentionally left blank

1.14     LANDLORD. Raytheon Engineers & Constructors, Inc.

1.15     LANDLORD'S MAILING ADDRESS. 1200 Corporate Drive, Hoover, AL 35242.

1.16     LEASE YEAR. The period of time from January 1 through December 31 of
         each calendar year during the Term hereof.

1.17     PREMISES. That portion of the Building containing, for the purposes of
         this Lease, 21,058 Rentable Square Feet. The Premises is shown as
         outlined on the floor plan attached hereto as Exhibit A and is located
         on the third floor of the Building.

1.18     REAL PROPERTY. That certain real property situated at 300 Corporate
         Parkway, Hoover, Alabama 35242.

1.19     RENT. Base Rent, Additional Rent and all other sums, charges, and
         expenses payable hereunder by Tenant.

1.20     RENTABLE SQUARE FEET (OR FOOT). The area of the Premises or the
         Building, as the case may be measured by the national standard adopted
         by the Building Owners and Managers Association International for
         rentable area.

1.21     RULES AND REGULATIONS. The Rules and Regulations attached hereto as
         Exhibit C and all modifications and amendments made from time to time
         thereto by Landlord.

1.22     SECURITY DEPOSIT. Intentionally omitted.


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1.23     TAKING. A taking of all or any portion of the Building or the Premises
         as a result of, in lieu of or in anticipation of the exercise of the
         right of eminent domain, condemnation, nationalization, seizure,
         confiscation, or requisition pursuant to any law, general or special,
         or by reason of the requisition of the Building, the Premises or any
         portion thereof by any governmental authority, civil, military or other
         person legally possessing the power of eminent domain or by private
         purchase in lieu thereof.

1.24     TENANT. Nichols TXEN Corporation.

1.25     TENANT IMPROVEMENT ALLOWANCE. Intentionally omitted.

1.26     TENANT IMPROVEMENTS. Those leasehold improvements to be made to the
         Premises pursuant to Section 4.03.

1.27     TENANT'S MAILING ADDRESS. Nichols TXEN Corporation, 10 Inverness Center
         Parkway, Suite 500, Birmingham, AL 35242. On and after the Commencement
         Date, Tenant's Mailing Address shall be the address of the Premises.

1.28     TENANT'S PERSONAL PROPERTY. All furniture, furnishings, fixtures,
         equipment, machinery and other personal property (other than the Tenant
         Improvements) owned or used by Tenant in or about the Premises.

1.29     TENANT'S SHARE. The percentage obtained by dividing the Rentable Square
         Feet of space in the Premises by the total Rentable Square Feet of 
         space in the Building.

1.30     TERM. Nine (9) months, commencing on the Commencement Date and expiring
         on the Expiration Date.

1.31     WORK LETTER. Intentionally Omitted.

ARTICLE II -- LEASE AND USE OF PREMISES

2.01     LEASE OF PREMISES. Landlord does hereby lease to Tenant and Tenant does
         hereby hire and accept from Landlord the Premises for and during the
         Term, subject to the terms and conditions set forth in this Lease.
         Subject to the terms and conditions set forth in this Lease, Tenant is
         hereby granted the nonexclusive right to use during the Term, in common
         with Landlord, other tenants of the Building and their respective
         employees, agents, independent contractors, licensees and invitees, all
         of the Common Areas. Notwithstanding anything provided in this Lease to
         the contrary, no easement for light, air or view is granted to
         Tenant hereunder.


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2.02     DELIVERY OF POSSESSION. In the event Landlord is unable for any reason
         to deliver possession of the Premises to Tenant on or prior to the
         Commencement Date, then:

         A.       This Lease shall not be voidable or void and Landlord shall
                  have no liability hereunder for any loss or damages (including
                  loss of profits) suffered, paid, or incurred by Tenant as a
                  result thereof.

         B.       The Commencement Date shall be postponed until such time as
                  Landlord can deliver to Tenant possession of the Premises and
                  the Expiration Date shall be extended for an equal period.
                  Landlord and Tenant agree to execute an amendment to this
                  Lease on or before the Commencement Date setting forth, if
                  applicable:

                  (i)      The Commencement Date and Expiration Date.

                  (ii)     The total Rentable Square Feet in the Premises,
                           including floor plans of the location of the same.

                  (iii)    The actual amount of Base Rent.

                  (iv)     The actual amount of the Tenant Improvement
                           Allowance.

                  (v)      Such other matters as may be mutually agreed upon.


2.03     USE OF THE PREMISES.

         A.       Tenant shall use the Premises solely for general office
                  purposes and for no other purpose. Tenant shall not use or
                  occupy or permit anything to be done in the Premises in
                  violation of the Rules and Regulation or any law, covenant,
                  condition or restriction affecting the Building or the Real
                  Property or which will invalidate or increase the cost of any
                  fire, extended coverage or other insurance policy covering the
                  Building or personal property of Landlord located therein.
                  Tenant shall, on demand, reimburse Landlord for any penalties,
                  costs or expenses, including any additional premium charged
                  under any insurance policy, by reason of Tenant's failure to
                  comply with the provisions of this Section 2.03. Tenant shall
                  not do or permit anything to be done in or about the Premises,
                  the Common Areas or the Building which will in any way injure,
                  annoy, obstruct or interfere with the rights of other tenants
                  or occupants of the Building. Tenant shall not commit or
                  suffer to be committed any waste in or upon the Premises or
                  the Common Areas.

         B.       Tenant shall, at Tenant's sole expense, promptly abide by and
                  comply with the Rules and Regulations (and all amendments
                  thereto) and all present and future laws, ordinances,
                  regulations and rules of any local, county, state, federal and



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                  other governmental authority and any agency, bureau or
                  department thereof, and of any board of fire underwriters or
                  any other body exercising similar functions which may be
                  applicable to the Premises.

2.04     QUIET ENJOYMENT. Subject to the terms of this Lease, Tenant shall have
         the peaceable and quiet enjoyment and possession of the Premises
         without any manner of hindrance or interference by Landlord.

2.05     ENTRY. Landlord or Agent may enter the Premises at reasonable hours to
         show the Premises to lenders, prospective purchasers or tenants, to
         inspect the Premises or to make repairs required to be made by the
         Landlord under the terms hereof or repairs to adjoining space within
         the Building. Such entry by Landlord or Agent shall not entitle Tenant
         to any abatement of Rent.

2.06     PARKING. Tenant is granted the nonexclusive right, in common with
         Landlord, other tenants of the Building and their respective employees,
         agents, independent contractors, licensees and invitees, to use the
         parking facilities situated on the Real Property; provided, however,
         that, (i) Tenant, its agents, employees, independent contractors,
         invitees and licensees shall not utilize more than four (4) parking
         spaces per 1,000 Rentable Square Feet of space within the Premises,
         (ii) Tenant shall cause its agents, employees, independent contractors,
         invitees and licensees to park only in those areas designated from time
         to time by Landlord and (iii) Tenant, its agents, employees,
         contractors, invitees and licensees shall abide by all parking rules
         and regulations adopted from time to time by Landlord.


ARTICLE III -- RENT

3.01     BASE RENT. Tenant shall pay the Base Rent in twelve (12) equal monthly
         installments in advance on the first day of each month throughout the
         Term hereof. Base Rent shall be increased on each Adjustment Date as
         provided in Section 3.02 below.

3.02     INCREASES IN BASE RENT. On each Adjustment Date throughout the Term,
         Base Rent shall be adjusted based on increases in the Index by
         multiplying the Base Rent paid by Tenant immediately prior to such
         Adjustment Date by a fraction, the numerator of which shall be the
         Index for the month and year of the then applicable Adjustment Date and
         the denominator of which shall be the Index for the month and year in
         which the Commencement Date occurs. Notwithstanding anything provided
         herein to the contrary, in no event shall the Base Rent payable by
         Tenant as a result of such adjustment be less than the Base Rent paid
         by Tenant immediately prior to the then applicable Adjustment Date.

3.03     INCREASES IN OPERATING EXPENSES.



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         A.       As used in this Section 3.03, the following terms shall have
                  the following meanings:

                  (i)      ANNUAL PAYMENT. Tenant's Share of the difference
                           between the Operating Expenses paid or incurred
                           during the immediately preceding Lease Year and the
                           Operating Expenses paid or incurred during the Base
                           Year, reduced by the amount, if any, paid by Tenant
                           as the Monthly Estimate during the immediately
                           preceding Lease Year.

                  (ii)     MONTHLY ESTIMATE. Tenant's Share of the amount
                           determined by Landlord and payable by Tenant as the
                           estimated increase in Operating Expenses for the
                           ensuing Lease Year over the Operating Expenses for
                           the Base Year which amount is payable in advance in
                           twelve (12) monthly installments as provided in
                           Sections 3.03 B (i) and (ii) below.

                  (iii)    OPERATING EXPENSES. All costs and expenses paid or
                           incurred by Landlord or Agent each Lease Year in the
                           management, operation, repair and maintenance of the
                           Premises, the Building and the Real Property
                           (hereinafter collectively referred to as the
                           "Project"), including, without limitation:

                           (1)      All wages, salaries and compensation
                                    (including fringe benefits) paid or incurred
                                    for employees of Landlord or Agent
                                    performing any services in connection with
                                    the Project;

                           (2)      The costs of all materials, supplies,
                                    equipment and tools (whether purchased or
                                    leased) utilized with respect to the
                                    Project;

                           (3)      The costs of all services rendered by third
                                    parties with respect to the Project,
                                    including all costs paid or incurred by
                                    Landlord in providing any of the services to
                                    be provided by Landlord pursuant to the
                                    terms of the Lease;

                           (4)      Utility costs and services paid or incurred
                                    with respect to the Project, including,
                                    without limitation, costs for electricity,
                                    gas, telephone, sewage, refuse or garbage
                                    collection and fire protection for the
                                    Project;

                           (5)      All insurance premiums and policy
                                    deductibles paid with respect to the
                                    Project, including, without limitation, fire
                                    and extended coverage insurance, rent loss
                                    and public liability insurance coverage;

                           (6)      Management fees and expenses for the
                                    Project;

                           (7)      Taxes, hereinafter defined;



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                           (8)      Accounting, legal and advertising costs
                                    relating to the Project;

                           (9)      Common area maintenance charges and ground
                                    rents, if any, levied or assessed against or
                                    payable with respect to the Project; and

                           (10)     Costs of all capital improvements to the
                                    Project which are either required under any
                                    governmental law or regulation or which
                                    reduce Operating Expenses; provided,
                                    however, that the costs of any such capital
                                    improvements shall be amortized over the
                                    useful life of such improvements, as
                                    determined by Landlord, with interest
                                    thereon at the Applicable Rate in effect at
                                    the time such capital improvements were
                                    made.

                           (11)     ALL COSTS, CHARGES, AND EXPENSES INCURRED BY
                                    LANDLORD IN CONNECTION WITH ANY CHANGE OF
                                    ANY COMPANY PROVIDING ELECTRICITY SERVICE,
                                    INCLUDING, WITHOUT LIMITATION, MAINTENANCE,
                                    REPAIR, INSTALLATION, AND SERVICE COSTS
                                    ASSOCIATED THEREWITH.

                           Operating Expenses shall not include depreciation or
                           amortization (except as otherwise provided above),
                           debt service or interest paid or accrued or leasing
                           commissions or brokerage fees. Operating Expenses for
                           the first and last Lease Year of the Term shall be
                           prorated by Landlord to reflect what the Operating
                           Expenses would have been had the Commencement Date
                           been January 1 and the Expiration Date December 31.
                           If, in determining the Operating Expenses in the Base
                           Year or any subsequent Lease Year thereafter, less
                           than ninety-five percent (95%) of the Building is
                           fully occupied during such year, then Landlord shall
                           adjust the Operating Expenses for such Lease Year to
                           reflect what the Operating Expenses would have been
                           had the Building been ninety-five percent (95%)
                           occupied at all times during such Lease Year.

                  (iv)     TAXES. All real estate taxes, drainage assessments
                           (whether for drainage, sewage or public
                           improvements), taxes on rent or the occupancy or use
                           of the Project and similar governmental impositions,
                           whether general or special, levied, assessed, charged
                           or imposed by federal, state, county or local
                           governmental authorities against the Project or any
                           part thereof or the rents therefrom (excluding,
                           however, any income, franchise or similar tax imposed
                           directly on Landlord or the income derived by
                           Landlord from the Project unless the same are levied
                           or assessed in lieu of any of the foregoing),
                           including all increases in such taxes whether
                           resulting by special levy, annexation or otherwise,
                           together with all costs incurred by Landlord in
                           contesting the same. If, in determining the Taxes in
                           the Base Year or any subsequent Lease Year, the
                           Building and Real Property are not fully assessed



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                           as a completed and fully occupied structure, then
                           Landlord shall adjust the Taxes for such Lease Year
                           to reflect what the Taxes would have been for such
                           calendar year and had the Building and Real Property
                           been fully assessed as a completed, fully occupied
                           structure.

         B.       In addition to the payment of Base Rent, Tenant shall also pay
                  throughout the Term the Monthly Estimate and the Annual
                  Payment, which amounts shall be payable as follows:

                  (i)      During December of each Lease Year, including the
                           Base Year, or as soon as possible thereafter,
                           Landlord shall provide Tenant with written notice of
                           Landlord's estimate of Operating Expenses for the
                           ensuing Lease Year and the amount to be paid by
                           Tenant as the Monthly Estimate. In the event such
                           estimate indicates that Operating Expenses for the
                           ensuing Lease Year shall exceed the Operating
                           Expenses for the Base Year, then Tenant shall pay to
                           Landlord the Monthly Estimate in advance on the first
                           day of each month during the ensuing Lease Year;
                           provided, however, that if such estimate is not given
                           on or prior to January I of the ensuing Lease Year,
                           then (1) Tenant shall continue paying the Monthly
                           Estimate paid during the prior Lease Year until such
                           time as Landlord provides Tenant with such notice for
                           the ten current Lease Year and (2) at such time as
                           Tenant is given notice of the Monthly Estimate for
                           the then current Lease Year, Tenant shall pay any
                           amounts then owing as provided in such notice. If at
                           any time during a Lease Year, Landlord determines
                           that the Monthly Estimate then being paid by Tenant
                           will not be sufficient to pay the Annual Payment due
                           from Tenant for such Lease Year, then Landlord shall
                           have the right to increase the amount of the Monthly
                           Estimate payable by Tenant and Tenant agrees to pay
                           the increased amount of the Monthly Estimate;

                  (ii)     Within ninety (90) days after the end of each Lease
                           Year or as soon as possible thereafter, Landlord
                           shall deliver to Tenant a statement setting forth (1)
                           the amount of Operating Expenses paid or incurred in
                           the immediately preceding Lease Year in excess of the
                           Operating Expenses for the Base Year, (2) the amount
                           paid by Tenant as the Monthly Estimate during the
                           immediately preceding Lease Year and (3) the amount,
                           if any, owing by Tenant as the Annual Payment. If the
                           statement indicates that an Annual Payment is due
                           from Tenant, then Tenant shall pay such amount in
                           full within thirty (30) days after such statement is
                           given to Tenant. If the statement indicates that the
                           amount paid by Tenant during the preceding Lease Year
                           as the Monthly Estimate is in excess of Tenant's
                           Share of increases in Operating Expenses for the then
                           applicable Lease Year, then the excess shall be
                           applied as a credit to the Monthly Estimate due from
                           Tenant for the then current Lease Year and/or the
                           Annual Payment due from Tenant in any future Lease
                           Year.


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                           Notwithstanding anything provided herein to the
                           contrary, in no event shall the amount of Rent
                           payable by Tenant in any Lease Year be less than the
                           Base Rent.

         C.       Tenant may review Landlord's books pertaining to the
                  determination of the Monthly Estimate and the Annual Payment
                  during regular business hours in Landlord's or Agent's office
                  on or before 90 days after Landlord delivers its statement of
                  amounts due from Tenant; provided, however, that all
                  reasonable expenses incurred by Landlord or Agent in
                  connection with such review shall be paid by Tenant and such
                  review by Tenant shall not postpone or alter the liability and
                  obligation of Tenant to pay the Monthly Estimate or Annual
                  Payment.

         D.       If, for any reason, the Expiration Date of this Lease shall be
                  on a day other than December 31, then the Monthly Estimate
                  shall continue to be paid by Tenant through the Expiration
                  Date, and upon determination of the actual Operating Expenses
                  for the Lease Year in which the Expiration Date occurs, as
                  provided in Section 3.03 B (ii) above, Tenant shall pay to
                  Landlord the Annual Payment or Landlord shall refund to Tenant
                  any excess amounts paid by Tenant as the Monthly Estimate, as
                  the case may be.

3.04     PERSONAL PROPERTY, RENTAL AND OTHER TAXES. Tenant shall be solely
         responsible for the payment of all taxes, income, ad valorem or
         otherwise, levied upon, measured by or reasonably attributable to
         Tenant's business, all Rent payable hereunder or the cost or value of
         Tenant's Personal Property in the Premises. In the event Landlord is
         assessed or charged with any such tax which is attributable to
         Tenant's business, the Rent payable hereunder or Tenant's Personal
         Property, then Tenant shall reimburse Landlord upon demand for any and
         all such taxes by Landlord. The provisions of this Section 3.04 shall
         specifically include the obligation of Tenant to pay to Landlord (or to
         whomsoever Landlord directs that payment should be made) all rent or
         sales taxes assessed upon any Rent paid hereunder at such times
         required by the governmental authority levying the same.

3.05     PAYMENT OF RENT, LATE FEES AND LANDLORD CURE RIGHTS.

         A.       All Rent shall be due and payable by Tenant in all events and
                  Tenant agrees to pay said Rent without notice, demand, offset
                  or deduction to Agent at Agent's Mailing Address or at such
                  other address or to such other person as Landlord may from
                  time to time provide in writing to Tenant. All unpaid Rent
                  shall bear interest at the Applicable Rate from and after the
                  tenth day that said Rent was payable until the same has been
                  paid in full.

         B.       In addition to interest at the Applicable Rate, Tenant shall
                  pay to Landlord a late charge of five percent (5%) of the
                  amount of any Rent not paid within ten (10) days of its due
                  date. Landlord and Tenant agree that such charge is a
                  reasonable


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                  estimate of the administrative costs and expenses to be
                  incurred by Landlord in the event any Rent is not paid within
                  ten (10) days of its due date.

         C.       If Tenant fails or refuses to perform any of its obligations
                  under this Lease, then Landlord shall have the right, but not
                  the obligation, to perform such obligations of Tenant without
                  waiving or releasing any other rights or remedies of Landlord
                  provided herein or otherwise affecting Tenant's obligations
                  hereunder. Any amounts paid or incurred by Landlord in
                  performing any of the obligations of Tenant shall constitute
                  Rent and shall be due and payable by Tenant on demand with
                  interest thereon at the Applicable Rate from the date Landlord
                  incurred such costs or expenses.

         D.       If the Term of this Lease commences on a date other than the
                  first day of a month or terminates on a date other than the
                  last day of a month, then in either event, Rent for such month
                  shall be prorated on the basis of a thirty (30) day calendar
                  month.

ARTICLE IV -- SERVICES, REPAIRS, ALTERATIONS, TENANT'S PERSONAL PROPERTY AND
              UTILITIES

4.01     SERVICES.

         A.       Landlord shall furnish electric current to the Premises for
                  lighting and for small business machinery only,(e.g.,
                  typewriters, word processing equipment, small personal
                  computers and other small office equipment) during the days
                  and hours specified in Section 4.01 B below. Tenant shall not,
                  without Landlord's prior written consent, (i) use any
                  equipment or machinery in the Premises which, in Landlord's
                  opinion, will over load the wiring installations or the
                  electrical distribution system for the Premises or the
                  Building or interfere with the reasonable use thereof by other
                  tenants of the Building or (ii) connect any additional items
                  to the electrical distribution system for the Premises or the
                  Building or make any alteration or addition to such system.
                  Any such consent granted by Landlord may be conditioned upon
                  (1) Landlord's approval of all plans and specifications for
                  such use and Landlord's determination that such proposed use
                  will not materially or adversely affect the operation or use
                  of the Building, (2) separate meters being installed at
                  Tenant's expense (or Tenant paying the excess costs for such
                  electrical usage as may be established by an engineer hired by
                  Landlord at Tenant's expense), and (3) Tenant reimbursing
                  Landlord for all costs incurred by Landlord in connection
                  therewith.

         B.       Landlord shall also furnish heating, ventilation and air
                  conditioning ("HVAC") service to the Premises during the hours
                  from 8:00 a.m. until 6:00 p.m. (except for


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                  recognized holidays Monday through Friday and from 8:00 a.m.
                  until 12:00 p.m. on Saturdays, as required in Landlord's
                  judgment for the comfortable used and occupancy of the
                  Premises. If Tenant desires HVAC or electrical service at any
                  other time, Landlord shall use reasonable efforts to provide
                  such services provided that Tenant shall pay all costs
                  incurred by Landlord as a result thereof.

         C.       If, in the opinion of Landlord's electrical engineer or
                  consultant, Tenant's use of business machines in or on the
                  Premises (including, without limitation, the use of computers,
                  including main-frame or personal computers, copy machines and
                  word processing equipment) results in the consumption of more
                  electric current than is usually furnished or supplied
                  (without additional charge) to other tenants in the Building
                  or affects the temperature in the Premises otherwise
                  maintained by the HVAC system for the Building, then Landlord
                  shall have the right, at its option, to install (i) separate
                  electric meters in the Premises to measure the excessive
                  electric current usage by Tenant and/or (ii) supplemental air
                  conditioning systems in the Premises. In the event separate
                  metering and/or supplemental air conditioning systems are
                  installed by Landlord, then all costs incurred by Landlord in
                  installing, servicing, operating, maintaining and repairing
                  the same, including utility usage fees and charges and the
                  fees and expenses of Landlord's electrical engineer or
                  consultant, shall be payable by Tenant to Landlord on demand.
                  If separate metering or the installation of supplemental air
                  conditioning is not undertaken, then the costs of excessive
                  electric current usage, as determined by Landlord's electrical
                  engineer or consultant, shall be payable by Tenant to Landlord
                  on demand. Landlord shall have no liability for and Tenant
                  hereby releases Landlord from any liability of any nature
                  arising from Landlord's election not to install supplemental
                  air conditioning in the Premises and Tenants excessive use of
                  electric current in the Premises.

         D.       Landlord shall also furnish elevator service, restroom
                  supplies water for toilet, lavatory facilities and public
                  drinking fountains and janitorial services with such companies
                  and in such manner as are customarily furnished in comparable
                  office buildings in the area as Landlord shall, in its
                  discretion, determine; provided, however, that (i) Landlord
                  shall not have and Tenant hereby releases Landlord from any
                  liability for damage, injury, loss or theft to Tenant,
                  Tenant's employees or to any of Tenant's Personal Property or
                  the personal property of any of Tenants employees resulting
                  from the performance of such services and (ii) such services
                  shall be limited to the services customarily provided to all
                  other tenants in the Building. Any additional services
                  required by Tenant shall be paid solely by Tenant.

         E.       Landlord shall not be in default hereunder or liable for the
                  quality, interruption, cessation or any failure to provide any
                  of the above services nor for any injury or



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                  damage to person (including death) or property (including loss
                  of profits) caused by or resulting therefrom.


4.02     REPAIRS.

         A.       By entry upon the Premises either for commencement of the
                  construction of the Tenant Improvements (if Tenant is
                  constructing the same) or on the Commencement Date (if
                  Landlord is constructing the Tenant Improvements), Tenant
                  shall be deemed to have accepted the Premises in their then
                  current condition, "as is". No representations or warranties
                  concerning the condition of the Premises or the Building or
                  the title to the same have been made to Tenant by Landlord or
                  Agent except as specifically set forth in this Lease.

         B.       Tenant shall, throughout the Term, at Tenant's sole expense,
                  keep and maintain the Premises and every part thereof and all
                  of Tenant's Personal Property in good order, condition and
                  repair. Tenant shall be responsible and pay for all repairs
                  and alterations in and to the Premises, the Tenant
                  Improvements, the Common Areas, the Building and the
                  facilities and systems thereof arising out of (i) the
                  installation, removal, use or operation or Tenant' s Personal
                  Property in or upon the Premises or the Building and (ii) any
                  act, omission, misuse or negligence of Tenant, its agents,
                  employees, contractors, invitees and licensees.

         C.       Landlord shall, subject to the provisions of this Section
                  4.02, maintain all of the Common Areas and the structural
                  portions of the Premises and the Building. Except as
                  specifically provided herein, Landlord shall not be
                  responsible for any maintenance, repairs, services or the
                  making of any alteration of any kind for or upon the Premises,
                  the Common Area, the Building or the Real Property. Landlord
                  shall have no liability to Tenant nor shall Tenant's
                  obligations under this Lease be reduced or abated in any
                  manner whatsoever by reason of any inconvenience, annoyance,
                  interruption or injury to business arising from any repairs or
                  alterations which Landlord is required or permitted to make
                  under this Lease, any other tenant lease or as may be required
                  by applicable law for any portion of the Building or the
                  Premises. Landlord shall nevertheless use reasonable efforts
                  to minimize any interference with Tenant's business in the
                  Premises.

         D.       Tenant expressly waives the benefits of any statute now or
                  hereafter in effect which would otherwise afford Tenant the
                  right to withhold the payment of Rent, make repairs at
                  Landlord's expense or terminate this Lease as a result of
                  Landlord's failure to keep the Real Property, the Building or
                  the Premises in good order, condition and repair.


                                      -12-
   13


4.03     ALTERATIONS AND IMPROVEMENTS. Tenant shall not, without Landlord's
         prior written consent, make any alterations, additions or improvements
         in or about the Premises. The Tenant Improvements and all alterations,
         additions or improvements made or installed by Tenant in or to the
         Premises shall, when installed, immediately become the property of
         Landlord. Landlord reserves the right to require Tenant to remove any
         improvements or additions made to the Premises by Tenant and Tenant
         agrees to do so on or prior to the Expiration Date. Tenant shall keep
         the Premises and this Lease free from any liens and does hereby
         indemnify Landlord against and from any and all claims or liens against
         Landlord, the Building, the Real Property and the Premises arising out
         of any work performed, materials furnished or obligations incurred by
         Tenant.

4.04     TENANT'S PERSONAL PROPERTY. All of Tenant's Personal Property brought
         into the Building or Premises shall be at the sole risk of Tenant and
         Landlord shall not be liable to Tenant, its employees, agents,
         contractors, licensees and invitees for any theft or damage thereto. No
         later than the Expiration Date, Tenant shall remove all of Tenant's
         Personal Property from the Premises and repair all injury or damage
         resulting from such removal and surrender the Premises (together with
         all keys to Premises) in as good a condition as they were at the
         Commencement Date, reasonable wear and tear excepted. All of Tenants
         Personal Property remaining on or in the Premises after the Expiration
         Date shall be deemed conclusively abandoned, may be removed by Landlord
         and Tenant shall reimburse Landlord for the cost of removing the same.

4.05     UTILITIES. Notwithstanding anything provided in this Lease to the
         contrary, Landlord shall have the right, at any time, to require Tenant
         to meter all water, gas, electricity and other utilities serving the
         Premises in which event:

         A.       Tenant shall pay all such utility costs directly to the
                  appropriate utility company providing such services.

         B.       Tenant shall continue to be obligated to pay the Monthly
                  Estimate and the Annual Payment without reduction, abatement
                  or apportionment of the same.


4.06 UTILITY DEREGULATION.

         A.       LANDLORD HAS ADVISED TENANT THAT PRESENTLY ALABAMA POWER
                  COMPANY ("ELECTRIC SERVICE PROVIDER") IS THE UTILITY COMPANY
                  SELECTED BY LANDLORD TO PROVIDE ELECTRICITY SERVICE FOR THE
                  BUILDING. NOTWITHSTANDING THE FOREGOING, IF PERMITTED BY LAW,
                  LANDLORD SHALL HAVE THE RIGHT AT ANY TIME AND FROM TIME TO
                  TIME DURING THE LEASE TERM TO EITHER CONTRACT FOR SERVICE FROM
                  A DIFFERENT COMPANY OR COMPANIES PROVIDING ELECTRICITY SERVICE
                  (EACH SUCH COMPANY


                                      -13-
   14


                  SHALL HEREINAFTER BE REFERRED TO AS AN "ALTERNATE SERVICE
                  PROVIDER") OR CONTINUE TO CONTRACT FOR SERVICE FROM THE
                  ELECTRIC SERVICE PROVIDER.

         B.       TENANT SHALL COOPERATE WITH LANDLORD, THE ELECTRIC SERVICE
                  PROVIDER, AND ANY ALTERNATE SERVICE PROVIDER AT ALL TIMES AND,
                  AS REASONABLY NECESSARY, SHALL ALLOW LANDLORD, ELECTRIC
                  SERVICE PROVIDER, AND ANY ALTERNATE SERVICE PROVIDER
                  REASONABLE access TO THE BUILDING'S ELECTRIC LINES, FEEDERS,
                  RISERS, wiring, AND ANY OTHER MACHINERY WITHIN THE PREMISES.

         C.       LANDLORD SHALL IN NO WAY BE LIABLE OR RESPONSIBLE FOR ANY
                  LOSS, DAMAGE, OR EXPENSE THAT TENANT MAY SUSTAIN OR INCUR BY
                  REASON OF ANY CHANGE, FAILURE, INTERFERENCE, DISRUPTION, OR
                  DEFECT IN THE SUPPLY OR CHARACTER OF THE ELECTRIC ENERGY
                  FURNISHED TO THE PREMISES, OR IF THE QUANTITY OR CHARACTER OF
                  THE ELECTRIC ENERGY SUPPLIED BY THE ELECTRIC SERVICE PROVIDER
                  OR ANY ALTERNATE SERVICE PROVIDER IS NO LONGER AVAILABLE OR
                  SUITABLE FOR TENANT'S REQUIREMENTS, AND NO SUCH CHANGE,
                  FAILURE, DEFECT, UNAVAILABILITY, OR UNSUITABILITY SHALL
                  CONSTITUTE AN ACTUAL OR CONSTRUCTIVE EVICTION, IN WHOLE OR IN
                  PART, OR ENTITLE TENANT TO ANY ABATEMENT OR DIMINUTION OF
                  RENT, OR RELIEVE TENANT FROM ANY OF ITS OBLIGATIONS UNDER THE
                  LEASE.

ARTICLE V -- INDEMNITY AND INSURANCE

5.01     INDEMNITY. Tenant hereby waives and releases any and all claims against
         Landlord and Agent for damages to person or property occurring in, on,
         about or upon the Premises, the Building or the Real Property. Tenant
         does hereby indemnify and hold Landlord and Agent harmless from and
         against any and all claims, demands, liabilities, losses, damages,
         costs and expenses (including reasonable attorney's fees) of any nature
         arising out of or in connection with:

         A.       Any penalty, damages or charges imposed or levied against
                  Landlord, Agent, the Premises, the Building or the Real
                  Property by any governmental authority as a result of Tenant's
                  failure to comply with all applicable governmental
                  requirements.

         B.       Any injury or damage to person or property occurring in, on or
                  about the Premises, the Building or the Real Property caused
                  by or resulting from any negligent act or omission or any
                  willful act or omission of Tenant, its agents, employees,
                  contractors, licensees and invitees.

                  Tenant shall, at Tenant's expense, and by counsel satisfactory
                  to Landlord, defend Landlord in any action or proceeding
                  arising from any such claim and shall indemnify Landlord
                  against any and all costs and expenses, including attorneys'
                  fees, suffered,


                                      -14-
   15


          paid or incurred by Landlord in any such action or proceeding. The
          provisions of this Section 5.01 shall survive the Expiration Date of
          this Lease.

5.02     INSURANCE.

         A.       Tenant shall, at Tenant's sole expense, obtain and maintain in
                  full force and effect throughout the Term fire and extended
                  coverage insurance insuring all of Tenant's Personal Property
                  and any improvements to the Premises (including the
                  replacement cost of all Tenant Improvements made to the
                  Premises in excess of the Tenant Improvement Allowance) in
                  such amounts determined by Tenant to be necessary. Said
                  insurance coverage shall also insure against damages
                  attributable to water damage, utility interruption, vandalism,
                  theft, and malicious mischief.

         B.       Tenant shall, at Tenant! s expense, obtain and maintain
                  throughout the Term, comprehensive public liability and
                  property damage insurance, providing personal injury and broad
                  form property damage insurance coverage for not less than $
                  1,000,000 combined single limit for bodily injury, death and
                  property damage.

         C.       All insurance required to be maintained hereunder by Tenant
                  shall:

                  (i)      Be issued by insurance companies reasonably
                           acceptable to Landlord.

                  (ii)     Name Landlord and, if required by Landlord,
                           Landlord's lender, if any, as additional insureds. 

                  (iii)    Contain a provision that such insurance coverage will
                           not be terminated or canceled without ten (10) days
                           prior written notice to Landlord.

                  (iv)     Provide that no claims affecting Landlord or to which
                           Landlord is a party may be settled without the prior
                           written approval of Landlord.

                  All insurance policies or certificates thereof evidencing the
                  insurance to be maintained hereunder by Tenant shall be
                  deposited with Landlord prior to Tenants access to the
                  Premises. At least fifteen (15) days prior to the expiration
                  date of any such policies renewal policies or certificates
                  thereof shall be deposited with Landlord. Tenant shall have
                  the right to provide the insurance coverage required hereunder
                  pursuant to blanket policies acceptable to Landlord.

         D.       Tenant does hereby waive and release Landlord and Agent from
                  any and all liabilities or responsibilities or for any other
                  claim by or through Tenant, by way of subrogation or
                  otherwise, for any loss or damage covered by (or which should
                  be covered by) the insurance policies required to be
                  maintained hereunder by Tenant, even if the loss or damage
                  shall have been caused by the fault or


                                      -15-
   16


                  negligence of Landlord or Agent. Tenant agrees to obtain from
                  its respective insurance carriers waiver of subrogation
                  endorsements to all such policies in form reasonably
                  acceptable to Landlord.

ARTICLE VI -- CASUALTY AND EMINENT DOMAIN

6.01     DAMAGE OR DESTRUCTION.

         A.       In the event of any Casualty, Landlord shall, subject to the
                  provisions of this Section 6.01, promptly repair such damage;
                  provided, however, that if (i) such Casualty results in all or
                  substantially all of the Building being destroyed, then this
                  Lease shall automatically terminate as of the date of such
                  Casualty or (ii) such Casualty results in damage to the
                  Building or the Premises which cannot be repaired within one
                  hundred eighty (180) days from the date of such Casualty,
                  Landlord shall notify Tenant of the same and Landlord or
                  Tenant shall have the right, at their option, to terminate
                  this Lease upon notice to the other given at any time on or
                  before forty-five (45) days following the date of such
                  Casualty.

         B.       In the event the amount of insurance proceeds received by
                  Landlord from any such Casualty (less the costs of collecting
                  the same) is insufficient to rebuild or restore the Building
                  or the Premises to their respective conditions as existed
                  immediately prior to such Casualty, then Landlord shall have
                  the option to terminate this Lease upon notice to Tenant given
                  at any time on or before forty-five (45) days following the
                  date of such Casualty. Landlord's obligation to restore the
                  Tenant Improvements shall be limited to the amount of the
                  Tenant Improvement Allowance. Tenant shall restore, at its
                  sole cost and expense, all Tenant Improvements to the
                  Premises, the costs of which exceed the Tenant Improvement
                  Allowance, and all of Tenant's Personal Property.

         C.       In the event this Lease is terminated in the manner provided
                  in this Section 6.01, all Rent shall be apportioned to the
                  date of such Casualty and Tenant shall have no right or claim
                  against Landlord or the insurance proceeds received by
                  Landlord as a result of such Casualty. In the event this Lease
                  is not terminated and Landlord elects to repair and restore,
                  then all Rent shall be equitably abated for that portion of
                  the Premises rendered untenantable by such Casualty until such
                  time as the Landlord reasonably determines that the Premises
                  have been restored.

6.02     EMINENT DOMAIN.

         A.       In the event of a Taking of all or substantially all of the
                  Premises, the Building or the Real Property, then this Lease
                  shall terminate on the date that title to the Building or the
                  Real Property has vested in the condemning or purchasing
                  party.


                                      -16-
   17


         B.       In the event of a Taking of only a portion of the Premises,
                  the Building or the Real Property, then, subject to the
                  provisions of this Section 6.02, Landlord shall rebuild and
                  restore the remaining structural portions of the Premises, the
                  Building and the Real Property as nearly as possible to their
                  respective conditions as existed immediately prior to such
                  Taking; provided, however, that (i) Landlords obligation to
                  restore the Tenant Improvements in the Premises shall be
                  limited to the amount of the Tenant Improvement Allowance
                  prorated on the basis that the Rentable Square Feet in the
                  Premises subject to such Taking bears to the Rentable Square
                  Feet in the Premises immediately prior to such Taking and (ii)
                  Tenant shall restore, at its sole cost and expense, all
                  tenants Improvements made to the Premises, the costs of which
                  exceed the Tenant Improvement Allowance, and all of Tenant's
                  Personal Property.

         C.       In the event the condemnation award received by Landlord from
                  any such Taking (less expenses incurred in collecting the
                  same), is insufficient to rebuild or restore the Premises, the
                  Building or the Real Property to their respective conditions
                  as existed immediately prior to such Taking, then Landlord
                  shall have the option to terminate this Lease upon notice to
                  Tenant given at any time on or before one hundred eighty (180)
                  days following the date of such Taking.

         D.       In the event this Lease is terminated in the manner set forth
                  in this Section 6.02, all Rent shall be apportioned to the
                  time that title to the Building or the Real Property has
                  vested in the condemning or purchasing party. In the event
                  this Lease is not terminated and Landlord elects to repair and
                  restore, then, to the extent any portion of the Premises is
                  subject to the Taking, all Rent shall be equitably abated (on
                  the basis of the Rentable Square Feet in the Premises
                  remaining after such Taking) as of the date that title to that
                  portion of the Premises has vested in the condemning authority
                  or purchasing party.

         E.       All compensation awarded or paid upon any total or partial
                  Taking shall belong to and be the property of Landlord. Tenant
                  shall have no right or claim to any part of any condemnation
                  award made to or received by Landlord; provided, however, that
                  Tenant shall have the right, to the extent Landlord's award is
                  not reduced or prejudiced thereof, to seek and obtain from the
                  condemning authority such compensation as may be recoverable
                  by Tenant for the costs of Tenant Improvements made by Tenant
                  to the Premises in excess of the Tenant Improvement Allowance,
                  relocation expenses and for the Taking of any Tenant's
                  Personal Property. In no event shall Tenant have any right to
                  claim or receive any portion of the condemnation award
                  attributable to Tenant's leasehold interest in this Lease,
                  Tenant Improvements to the Premises paid for by Landlord or
                  the value of the unexpired Term of this Lease.

ARTICLE  VII -- DEFAULT AND REMEDIES


                                      -17-
   18


7.01     DEFAULT. The occurrence of any one or more of the following events
         shall constitute a default ("Default") by Tenant:

         A.       If Tenant fails to pay when due Rent or any other charges or
                  sums required to be paid hereunder by Tenant and such failure
                  continues for ten (10) days after written notice is given to
                  Tenant by Landlord;

         B.       If Tenant fails to promptly and fully perform any other
                  covenant, condition or agreement contained herein and such
                  failure to perform continues for thirty (30) days after
                  written notice is given to Tenant by Landlord;

         C.       If Tenant vacates or abandons the Premises;

         D.       If Tenant is adjudicated a bankrupt or files or consents to
                  the filing of a voluntary or involuntary petition in
                  bankruptcy or a petition for relief, reorganization or
                  arrangement in any proceeding under the federal bankruptcy
                  laws, which petition is not withdrawn or dismissed within
                  sixty (60) days thereafter; or

         E.       If Tenant (i) seeks, consents to, or acquiesces in the
                  appointment of a receiver of all or substantially all of the
                  Tenant's property or of Tenant's interest in this Lease, (ii)
                  makes an assignment for the benefit of its creditors, (iii)
                  fails to lift promptly any execution, garnishment or
                  attachment which impair its ability to carry on its operations
                  in the Premises or (iv) is dissolved, ceases the active
                  conduct of business or makes a bulk sale of all or
                  substantially all of its assets.


                                      -18-
   19


         B.       If at any time during the Term, Tenant desires to assign this
                  Lease or sublet all or any part of the Premises, then Tenant
                  shall notify Landlord (the "Tenant's Notice") of the terms of
                  the proposed assignment or subletting, the location of the
                  space and all other terms of the proposed assignment or
                  subletting, together with such information concerning the
                  proposed use and creditworthiness of such proposed assignee or
                  subtenant as Landlord may request. Landlord shall have the
                  option, exercisable by notice given to Tenant within thirty
                  (30) days after receipt of Tenant's Notice, to enter into a
                  new lease with the proposed assignee or subtenant in
                  accordance with the terms set forth in Tenant's Notice, in
                  which event this Lease shall be deemed terminated for the term
                  and that portion of the Premises subject to such new lease and
                  all rent and other sums payable pursuant to such new lease
                  shall belong to Landlord, without further claim or interest
                  therein by Tenant. If Landlord does not exercise the option
                  set forth above, then the provisions of

                  Section 8.01 A above shall then be applicable. If Landlord
                  consents to such proposed assignment or subletting, then
                  Tenant shall be entitled to assign this Lease or sublet the
                  Premises in accordance with the terms set forth in Tenant's
                  Notice; provided, however, that (i) such assignment or
                  subletting shall not alter any of the terms and conditions of
                  this Lease, (ii) Tenant shall remain primarily liable for the
                  payment and performance of all obligations of Tenant hereunder
                  and (iii) all sums or other economic consideration of any
                  nature received by Tenant from such assignment or subletting
                  which exceed, in the aggregate, the Rent payable by Tenant
                  hereunder (prorated to reflect only that portion of the
                  Premises covered by such assignment or subletting), shall be
                  payable to Landlord as Rent under this Lease.

         8.02     SUBSTITUTION OF SPACE. In the event the Premises constitute
                  less than four thousand (4,000) Rentable Square Feet of floor
                  space, Landlord reserves the right, at its option, upon thirty
                  (30) days prior written notice to Tenant, to transfer and
                  remove Tenant from the Premises to any other available space
                  of substantially equal size and area in the Building. Landlord
                  shall bear the expense of said removal as well as the expense
                  of any renovations or alterations necessary to make the new
                  space substantially conform in layout and appointment with the
                  original Premises.

         8.03     SUBORDINATION. This Lease is and shall be subject and
                  subordinate to all ground leases, mortgages and other matters
                  of title which may now or hereafter affect or encumber the
                  Building, the Real Property or any portion thereof. Landlord
                  reserves the right to place additional liens, encumbrances and
                  mortgages on the Building, the Real Property or any part
                  thereof which shall in all cases be superior to this Lease and
                  Tenant's interest herein. The subordination of this Lease as
                  provided herein shall be self-operative without the necessity
                  of the execution and delivery of any further instruments on
                  the part of Tenant to effect such subordination.
                  Notwithstanding the


                                      -21-
   20


         foregoing, Tenant covenants and agrees to execute, without charge or
         expense, any and all further instruments or certificates in such form
         as Landlord may request from time to time to confirm this
         subordination. Tenant's failure to execute and deliver any instruments
         or certificates confirming such subordination within ten (10) days
         after request therefor by Landlord shall constitute a Default
         hereunder.

8.04     ESTOPPEL CERTIFICATES. Tenant agrees to execute and deliver to Landlord
         estoppel certificates in such form as Landlord may request certifying,
         among other things (i) whether there exist any defaults by Landlord or
         Tenant hereunder, (ii) the amount and dates through which all Rent and
         other sums due hereunder have been paid (iii) whether this Lease has
         been modified or amended, (iv) that no rights of offset or termination
         exist unto Tenant hereunder and (v) as to any such other matters as
         Landlord (or Landlord's purchasers or lenders) may request. Tenants
         failure to execute and deliver any such certificate within ten (10)
         days after request therefor by Landlord shall constitute a Default
         hereunder. All estoppel certificates shall be in such form and content
         as Landlord may require.

ARTICLE IX -- MISCELLANEOUS

9.01     HOLDING OVER. If after the Expiration Date, Tenant remains in
         possession of the Premises without Landlord's express written
         permission, Tenant shall become a tenant at sufferance subject to and
         upon all the provisions of this Lease (except as to Term and Rent), but
         the Rent payable by Tenant shall be increased to two hundred percent
         (200%) of the Rent payable by Tenant immediately prior to the
         Expiration Date.

9.02     ASSIGNMENT BY LANDLORD; SUCCESSORS. The provisions of this Lease shall
         bind and inure to the benefit of Landlord and Tenant, and their
         respective successors, heirs, legal representatives, and where
         permitted, assigns or subtenants. In the event of any sale or transfer
         of the Building and Real Property, the Landlord named herein shall be
         entirely freed and relieved of all covenants and obligations of
         Landlord hereunder accruing after the date of such sale or transfer and
         Tenant agrees to look solely to the new owner of the Building and Real
         Property for the performance of all covenants and obligations to be
         performed by Landlord herein from and after the date of such transfer
         or sale. Tenant shall be bound to any succeeding party of Landlord for
         the performance of all the terms, covenants and conditions hereof and
         shall execute any attornment agreement not in conflict herewith at the
         request of any succeeding party of Landlord.

9.03     SECURITY DEPOSIT. Intentionally left blank.

9.04     LIMITATION OF LIABILITY. Notwithstanding anything to the contrary
         provided in this Lease or by law, it is specifically agreed and
         understood between the parties hereto that there shall be absolutely no
         personal liability on the part of the Landlord, Agent


                                      -22-
   21


         or any successors in interest or designees thereof, with respect to any
         of the terms, covenants and conditions of this Lease and Tenant or any
         other party claiming by, through or under the Tenant:

         A.       Agrees to look solely to the interest of the Landlord in the
                  Building and Real Property, as its interest may appear, for
                  the collection of any claim, demand, cost, expense, judgement
                  or any judicial process requiring the payment of money for any
                  default or breach by Landlord or Agent of any of their
                  obligations under this Lease.

         B.       Waives all rights of recovery for any special, indirect,
                  incidental, consequential, or punitive damages against (i) the
                  stockholders, officers, and directors of Landlord and Agent if
                  Landlord or Agent is a corporation or if a corporation serves
                  as a general or limited partner of Landlord or Agent and, (ii)
                  the partners, both general and limited, of Landlord and Agent,
                  if Landlord or Agent is a general or limited partnership. No
                  other assets of Landlord or Agent shall be subject to levy,
                  execution, or other judicial process for the satisfaction of
                  any claim of Tenant.

9.05     NOTICES. Any notice by either party to the other shall be valid only if
         in writing and shall be deemed to have been given only if delivered
         personally, sent by registered or certified mail, return receipt
         requested, or by guaranteed overnight courier delivery service (e.g.,
         Federal Express), postage or delivery charges prepaid, addressed to
         Landlord (with a copy to Agent) or Tenant, as the case may be, at the
         respective addresses specified in Article I of this Lease or at such
         other address as any such party may designate by notice to the other.
         Notices shall be deemed to have been given (i) upon personal delivery
         of the same or (ii) upon deposit of such notice in the U.S. mail or
         with the guaranteed overnight courier delivery service.

9.06     CAPTIONS. Captions and headings in this Lease are included for
         convenience of reference only and shall not be taken into consideration
         in any construction or interpretation of this Lease or any of its
         provisions.

9.07     ENTIRE AGREEMENT AND ENFORCEABILITY. This Lease contains the entire
         agreement between Landlord and Tenant and no representations,
         inducements, promises or agreements, oral or otherwise, between
         Landlord (or Agent) and Tenant not embodied herein shall be of any
         force or effect. This Lease may be amended only in a writing duly
         executed by both Landlord and Tenant. No oral agreements between
         Landlord or Agent and Tenant, whether made prior or subsequent to the
         execution of this Lease, shall be binding on any of the parties hereto.
         If any term or provision of this Lease or the application thereof to
         any person or circumstance shall to any extent, be invalid or
         unenforceable, the remainder of this Lease, or the application of such
         term or provision to persons or circumstances other than those as to
         which it is held invalid or


                                      -23-
   22


         unenforceable, shall not be affected thereby, and each term and
         provision of this Lease shall be valid and enforceable to the fullest
         extent permitted by law.

9.08     GENDER. Words of any neuter gender used in this Lease shall include
         both the masculine and feminine gender and words in the singular tense
         shall include the plural, and vice versa.

9.09     BROKERS. Landlord and Tenant each warrant and represent to the other
         that no broker, finder, real estate agent or other person is entitled
         to a commission, fee or other compensation in connection with or as a
         result of this Lease or the transactions contemplated hereby or
         hereunder except such compensation might be due to Agent, which shall
         be the sole obligation of Landlord. Landlord and Tenant each indemnify
         and hold the other harmless from any and all claims, loss, costs and
         damages (including reasonable attorneys' fees) arising in connection
         with any claims against the other for broker fees. In the event Tenant
         leases additional space in the Building or exercise any expansion right
         granted herein, then Landlord agrees to pay to Agent an amount equal to
         four percent (4%) of the gross rents payable during the term of the
         lease for such additional space or expansion space, cashed out and
         payable upon execution of such lease agreement or at the time notice of
         the exercise of such expansion rights is given. In the event this Lease
         is renewed or extended, Landlord agrees to pay to Agent an amount equal
         to two percent (2%) of the gross rents payable during the extended
         term(s), cashed out and payable upon execution of any renewal or
         extension agreement. The provisions of this Section 9.09 shall be
         binding on any successor in interest to Landlord.

9.10     NO PARTNERSHIP CREATED. The parties hereto have not and do not intend
         to create by this Lease a joint venture or partnership relation between
         them.

9.11     TIME OF ESSENCE. Time is of the essence in the performance of each and
         every covenant and obligation set forth in this Agreement.

9.12     GOVERNING LAW. This Lease and the rights and obligations of Landlord
         and Tenant hereunder shall be interpreted, construed and enforced in
         accordance with the laws of the State of Alabama.

9.13     EXHIBITS. The following exhibits attached to this Lease are hereby
         incorporated herein by reference as if fully set forth herein:

         (i)      Exhibit A: Floor Plan

         (ii)     Exhibit B: Rules and Regulations



                                      -24-
   23


9.14     SPECIAL STIPULATIONS.

9.14(A)  Landlord agrees to provide the following prior to the Commencement
         Date.
         (i)      Remove the demountable partitions in the Premises as directed
                  by Tenant.
         (ii)     Reconfigure the open office partitions in the Premises as
                  directed by Tenant.
         (iii)    Landlord agrees to leave substantially all of the existing
                  furniture (or substantially comparable furniture) in the
                  Premises.

         In Witness Whereof, the parties have executed this Lease as of the day
and year first above written.

LANDLORD:    Raytheon Engineers & Constructors, Inc.

/s/
- ----------------------------------

    By:  /s/
       ---------------------------

    Its:  Vice President
        --------------------------


TENANT:      Nichols TXEN Corporation

/s/
- ----------------------------------

    By:  /s/
       ---------------------------

    Its:  President
        --------------------------



                                      -25-
   24




                                   EXHIBIT "A"

                                  [Floor Plan]










   25
                                    EXHIBIT B
                              RULES AND REGULATIONS

1.       Tenant shall keep the Premises and all Common Areas utilized by Tenant,
         its agents, employees, independent contractors, licensees and invitees,
         clean and shall not allow debris from the Premises to collect in any of
         the corridors, halls, stairs, ventilators, elevators, lobbies or other
         areas of the Building. All trash, refuse and debris shall be placed in
         appropriate containers designated for trash collection by Landlord from
         time to time. Tenant shall not place in any trash receptacle any
         material which cannot be disposed of in the ordinary and customary
         manner of trash and garbage disposal. Tenant shall use its best efforts
         to require its agents, employees, independent contractors, invitees and
         licensees to deposit cigarettes and all tobacco products only in ash
         trays within the Building or Premises and to refrain from littering any
         portion of the Building or the Real Property with trash or other
         debris. Tenant shall comply with and enforce all governmental rules and
         regulations concerning smoking policies which affect any portion of the
         Premises or the Building.

2.       Hallway doors to the Premises opening into Common Areas or public
         corridors shall have no signs, door hardware, kickplates or other
         fixtures attached thereto unless approved in writing by Landlord and
         shall be kept closed at all times except for those limited periods when
         actually used for entry to and exit from the Premises. No signs
         (including name plates or signage identifying the Tenant as the tenant
         of the Premises), banners, flags, placards, pictures, advertisements or
         notices shall be installed or displayed upon the interior or exterior
         portions of the Building or within those portions of the Premises which
         are visible from the exterior of the Building or any of the Common Area
         without Landlord's prior written approval. Informational signage
         identifying Tenant's office space and lobby area building directories
         shall be of a standard and uniform size and of color and style approved
         by Landlord.

3.       No birds, pets or animals of any kind shall be permitted in the
         Premises, the Building or on the Real Property.

4.       Toilets, sinks, urinals, or other apparatus in the Building shall not
         be used for any purposes other than those for which they were
         constructed, and no sweepings, rubbish, rags, or other foreign
         substance of any kind shall be deposited therein. Any damage resulting
         from misuse of any toilets, sinks, urinals or other apparatus in the
         Building shall be repaired and paid for by the tenant whose employees,
         subtenants, assignees or any of their servants, employees, agents,
         visitors, licensees, or invitees may have caused such damage.

5.       Tenant shall furnish Landlord or its agent with keys to all locked
         offices, washrooms, and


   26


         other rooms within the Premises and shall promptly furnish Landlord
         with new keys if those locks are supplemented or changed. In the event
         Landlord elects to provide a card access entry system for the Building
         and Premises, Tenant shall be furnished with the standard allotment of
         such access cards and all additional access cards required by Tenant
         shall be made available at Tenant's cost. Tenant shall assume full
         responsibility for protecting the Premises and the contents thereof
         from theft, robbery, pilferage, vandalism, and other loss, except to
         the extent caused by the gross negligence or willful and deliberate
         acts of Landlord. Tenant shall, upon the termination of the Lease,
         return to Landlord all keys (or access cards) to the Premises and the
         Building and all offices, washrooms, storage rooms and other locked
         areas within the Premises. Tenant shall pay to Landlord the cost of
         replacing any lost keys or access cards or of changing the lock or
         locks as a result of the loss of such keys or access cards.

6.       The parking garage (or parking lots), elevators, lobbies, restrooms,
         courts, vestibules, paths, walkways, sidewalks, entrances, stairways,
         landings, corridors, and halls of the Premises, the Building and the
         Real Property (a) shall not be obstructed or used for any purpose other
         than ingress and egress and (b) are not for the use of the general
         public. Landlord shall in all cases retain the right to control and
         prevent access to the Premises, the Building and the Real Property by
         all persons whose presence, in the judgment of Landlord, shall be
         prejudicial to the safety, character, reputation and interests of the
         Building; provided, however, that nothing herein contained shall be
         construed to prevent such access to persons with whom Tenant normally
         deals in the conduct of its business within the Premises (such as
         clients, customers, office suppliers and equipment vendors, and the
         like) unless such persons are engaged in illegal activities. Neither
         Tenant nor any employee of Tenant shall go upon the roof of the
         Building without the prior written consent of Landlord.

7.       Tenant assumes the risk and responsibility of moving its property in
         and out of the Building and the Premises. Landlord shall not be
         responsible for loss or damage of any nature or from whatever cause to
         any of Tenant's Personal Property.

8.       Supplies, goods and packages of any kind shall be delivered only
         through designated service areas or through the loading dock areas of
         the Building. All deliveries (including the moving of Tenant's
         Personal Property in and out of the Building and the Premises) shall be
         made through freight elevators designated by Landlord and only during
         such hours as designated from time to time by Landlord. No deliveries
         shall be made through the main lobbies of the Building or which impede
         or interfere with the use of the Building by other tenants, the
         operation of the Building or which may in any way damage any of the
         Common Areas.

9.       Landlord may take all reasonable measures it deems necessary for the
         safety and security of the Building or Real Property, including,
         without limitation, evacuation for cause, suspected cause, or temporary
         denial of Building access. There shall be no abatement of



   27


         Rent and Landlord shall not be responsible for any damages resulting to
         Tenant from such action. Landlord reserves the right to exclude or
         expel from the Building any person who, in the Landlord's judgment, is
         intoxicated, under the influence of alcohol or drugs, commits any act
         in violation of these Rules and Regulations or constitutes a security
         risk to the Premises, the Building or the Real Property.

10.      Except with the prior written approval of Landlord, Tenant's employees
         and invitees shall not gather in any of the Common Areas of the
         Building or Real Property.

11.      No cooking shall be permitted within the Building, except that the
         preparation of coffee, tea, hot chocolate, and similar items for Tenant
         and its employees and the use of microwave ovens by Tenant or its
         employees within the Premises shall be permitted provided that electric
         current for such use shall not exceed that amount which can be provided
         by a 30 amp circuit. The Premises shall not be used for manufacturing
         or for the storage of merchandise except as such storage may be
         incidental to the permitted use of the Premises. Tenant shall not
         occupy or permit any portion of the Premises to be occupied or used in
         violation of any applicable governmental law or the restrictions set
         forth in the Lease, for the manufacture, sale, storage or use of
         alcohol, narcotics or tobacco or as a medical office, barber or
         manicure shop or as an employment bureau without the express written
         consent of Landlord. Tenant shall not engage or pay any employees on
         the Premises except those actually working for Tenant on the Premises
         nor advertise for laborers giving an address at the Premises. The
         Premises shall not be used for lodging or sleeping or for any improper,
         objectionable, immoral or illegal purposes, as determined in Landlord's
         sole discretion.

12.      Tenant shall not permit or keep in the Premises any flammable,
         combustible, or explosive material, chemical or substance nor shall
         Tenant allow any smoke, dust, fumes, odors, gases, vapors or heat to be
         emitted from the Premises. Tenant shall not allow or permit any
         materials or chemicals to be produced, manufactured, generated,
         refined, transported, used, stored or disposed on or from the Premises
         which could or would be deemed hazardous or toxic waste or which would
         result in the violation of any applicable federal, state or local
         environmental or other law, statute, ordinance, rule or regulation,
         including, without limitation, the Comprehensive Environmental
         Response, Compensation and Liability Act of 1980, as amended (42
         U.S.C.ss.ss.6901, et seq), the Hazardous Materials Transportation Act,
         as amended (49 U.S.C.ss.ss.1801, et.seq.) and the Resource Conservation
         and Recovery Act of 1976, as amended (42 U.S.C.ss.ss.6901, et.seq).

13.      No vehicle (including bicycles and motorcycles) belonging to Tenant or
         to Tenant's agents, employees, or invitees shall be parked so as to
         impede or prevent ready access to any loading dock or any entrance to
         or exit from the Building, the Real Property or the parking garage (or
         parking lots) for the Building. Except as otherwise specifically
         provided in the Lease Agreement, all parking for the Building is
         provided on a nonexclusive basis. All vehicles of any nature shall be
         parked only in areas within the



   28


         parking garage (or parking lots) designated by Landlord. No vehicles of
         any nature shall be parked or left unattended for more than seven (7)
         consecutive days, unless in the ordinary course of Tenant's business
         and approved in writing by Landlord. The parking of motor homes,
         trailers, boats or delivery trucks in the garage (or parking lots) for
         the Building is prohibited. No bicycles or motorcycles shall be
         permitted inside the Building or the Premises nor shall bicycles or
         motorcycles be parked in a manner which would interfere with access to
         the Building or obstruct sidewalks or walkways on the Real Property.

14.      No vending machine or machines of any kind shall be installed,
         maintained, or operated upon the Premises or Common Areas without
         Landlord's prior written consent, which may be given or withheld in
         Landlord's reasonable discretion. Tenant shall not purchase or contract
         to be furnished to the Premises spring water, ice, towels, janitorial,
         security, maintenance or other services without Landlord's prior
         written consent.

15.      Canvassing, soliciting, peddling and distribution of handbills or any
         other written material in the Building or on the Real Property are
         prohibited.

16.      Tenant shall not place anything or allow anything to be placed near the
         glass of any window, door, partition, or wall of the Premises which
         may, in Landlord's opinion, appear unsightly from outside the Building.
         All drywall and wall partitions abutting the exterior portions of the
         Building shall be installed in such a manner that said drywall and wall
         partitions shall abut the mullions of the Building and not the glass
         windows of the Building. No electric or other outlets or switches shall
         be installed on any of the window walls of the Building or on any of
         the vertical penetrations of the Building. Tenant shall not mark, drive
         nails, screw or drill into the partitions, doors, woodwork or plaster
         or in any way deface the Premises of the Building, or any part thereof,
         except in accordance with the provisions of the Lease pertaining to
         alterations and except for usual and customary interior decorating and
         the installation of furniture, fixtures and telephones and electrical
         equipment. Landlord reserves the right to direct electricians as to
         where and how telephone and telegraph wires are to be introduced to the
         Premises. Tenant shall not cut or bore holes in the floors, ceilings or
         walls for wiring. Tenant shall not affix any floor covering to the
         floor of the Premises in any manner except as approved by Landlord.

17.      Tenant shall not install any sunscreening, curtains, blinds, shades,
         screens, or other objects on any window or door of the Premises without
         Landlord's prior written consent, which may be given or withheld in
         Landlord's reasonable discretion. All electric ceiling fixtures hung in
         offices or spaces along the perimeter of the Building must be
         fluorescent and of a quality, type, design, and bulb color approved by
         Landlord.

18.      Tenant shall (i) not waste electricity, water, or air conditioning and
         agrees to cooperate fully with Landlord to assure the most effective
         operation of heating and air conditioning services for the Building,
         (ii) comply with any governmental energy saving rules, laws



   29


         or regulations, (iii) refrain from tampering with or changing the
         setting of any thermostats, temperature control valves, or other
         controls affecting the heating and air conditioning system for the
         Building, (iv) not permit anything to be done or brought onto the
         Premises which would impair or interfere with the utility or other
         services to be provided by Landlord, (v) not utilize any other form or
         type of heating or cooling source within the Premises other than that
         provided by Landlord (e.g., space heaters, fans, window air
         conditioners) and (vi) promptly notify Landlord of any accidents,
         defects or malfunction in any of the utility services provided to the
         Premises. All lights and all of Tenant's office equipment in the
         Premises shall be turned off at night when such areas are not in use.

19.      Tenant shall not install or attach any radio or television antenna,
         loudspeaker, or other devices or projections on the roof or exterior
         walls of the Building or to any part of the Premises which would, in
         Landlord's opinion, interfere with the communication facilities
         utilized by other tenants of the Building or be unsightly.

20.      Landlord shall have the right to prohibit advertising by Tenant which,
         in Landlord's discretion, tends to impair the reputation of the
         Building or its desirability as an office location.

21.      Landlord reserves the right to exclude from the Building between the
         hours of 6:00 p.m. and 7:30 a.m. and at all hours on Saturday, Sunday,
         and legal holidays all persons who are not known to the Building
         watchman, if any, and who do not present a pass to the Building
         approved by the Landlord. In the event a card access system is
         installed for the Building, only authorized employees of Tenant shall
         be provided with access cards. Tenant shall be solely responsible for
         the acts and omissions of all persons for whom it requests passes and
         all persons utilizing access cards provided by Landlord to Tenant.
         Landlord shall in no case be liable for damages for any error with
         regard to the admission to or the exclusion from the Building or the
         Premises of any person, including any malfunction or defect in any card
         access system for the Building.

22.      Only hand trucks equipped with rubber tires and rubber side guards
         shall be used by Tenant in the Building.

23.      If Tenant requires telegraphic, telephonic, burglar alarm or similar
         services, Tenant shall first obtain, and comply with, Landlord's
         instructions regarding their installation.

24.      Tenant's use and occupancy of the Premises are subject and subordinate
         to all applicable governmental laws and regulations.

25.      Should Tenant desire to place any unusually heavy equipment, including,
         but not limited to, large files, safes and electronic data processing
         equipment on the Premises, it shall first obtain written approval of
         the Landlord to place such items within the Premises, for the



   30


         use of elevators within the Building, and for the proposed location for
         the installation of the same. Landlord shall have the right to
         prescribe the weight and position of any equipment that may exceed the
         weight load limits for the Building, and may further require, at
         Tenant's expense, the reinforcement of any flooring on which such
         equipment may be placed, and/or to have an engineering study performed
         to determine such weight and position of equipment, to determine added
         reinforcement required and/or determine whether or not such equipment
         can be safely placed within the Building.

26.      Tenant shall cooperate fully with the life safety plans for the
         Building as established and administered by the Landlord, including
         participation by Tenant and employees of Tenant in exit drills, fire
         inspections, life safety orientations and other programs relating to
         fire safety required or directed by Landlord.

27.      These Rules and Regulations are in addition to, and shall not be
         construed in any way to modify or amend, in whole or in part, the
         terms, covenants, agreements and conditions of the Lease.

28.      Landlord reserves the right to rescind, alter or waive any of the
         provisions of these Rules and Regulations or add thereto when, in its
         judgment, the same is necessary or desirable for the reputation,
         safety, care or appearance of the Building, the operation and
         maintenance of the Building or the comfort of tenants of the Building.



   31


7.02 REMEDIES.

        A.  In the event of any Default by Tenant, then in addition to all other
            rights and remedies of Landlord as may now or hereafter be provided
            at law or in equity, Landlord may, at its option, either:

            (i)   Annul and terminate this Lease and thereupon re-enter and take
                  possession of the Premises;

            (ii)  Without terminating this Lease, re-enter and re-let the
                  Premises from time to time as agent of Tenant, it being agreed
                  by Tenant that such re-entry and/or reletting shall not
                  constitute an election by Landlord to terminate this Lease
                  (unless Landlord provides Tenant with written notice of such
                  termination) or discharge Tenant from any liability or
                  obligation hereunder (nothing herein, however, shall be
                  construed to require Landlord to re-enter and re-let in such
                  event); or

            (iii) Declare all Rent for the remainder of the Term to be
                  immediately due and payable.

        B.  If Landlord re-enters the Premises under the provisions of Section
            7.02 A (ii) above, Landlord shall not be deemed to have terminated
            this Lease or the obligation of Tenant to pay any Rent or other
            charges thereafter accruing, unless Landlord notifies Tenant in
            writing of Landlord's election to terminate this Lease. In the event
            of any re-entry or retaking of possession by Landlord, Landlord
            shall have the right, but not the obligation, to remove all or any
            part of Tenant's Personal Property and to place the same in storage
            at a public warehouse at the expense and risk of Tenant. If Landlord
            elects to relet the Premises for the account of Tenant, the rent
            received by Landlord from such reletting shall be applied as
            follows: first, to the payment of any indebtedness other than Rent
            due hereunder from Tenant to Landlord; second, to the payment of
            reasonable costs of such reletting, including rent concessions,
            moving allowances and brokerage fees, if any; third, to the payment
            of the costs of any alterations, repairs or leasehold improvements
            to the Premises; fourth to the payment of Rent due and unpaid
            hereunder; and the balance, if any, shall be held by Landlord and
            applied in payment of future Rent as it becomes due. If that portion
            of rent received from the reletting is insufficient to pay the Rent
            due hereunder, then Tenant shall pay the deficiency to Landlord
            promptly upon demand by Landlord. Such deficiency shall be
            calculated and paid monthly. Tenant shall also pay to Landlord, as
            soon as determined, costs and expenses incurred by Landlord in
            connection with such reletting or in making alterations, repairs or
            leasehold improvements to the Premises which are not covered by the
            rent received from the reletting.

                                      -19-



   32


        C.  IF TENANT IS IN DEFAULT UNDER THIS LEASE MORE THAN TWO (2) TIMES
            WITHIN ANY TWELVE-MONTH PERIOD, IRRESPECTIVE OF WHETHER OR NOT SUCH
            DEFAULT IS CURED, THEN, WITHOUT LIMITING LANDLORD'S OTHER RIGHTS AND
            REMEDIES PROVIDED FOR IN THIS LEASE OR AT LAW OR EQUITY, THE
            SECURITY DEPOSIT SHALL AUTOMATICALLY BE INCREASED BY AN AMOUNT EQUAL
            TO THE GREATER OF.

            (I)   THREE (3) TIMES THE ORIGINAL SECURITY DEPOSIT, OR

            (II)  THREE (3) MONTHS' MINIMUM RENT, WHICH SHALL BE PAID BY TENANT
                  TO LANDLORD FORTHWITH ON DEMAND.

7.03  WAIVER. The failure by Landlord to insist in any instance on strict
      performance of any covenant or condition hereof or to exercise any option
      herein contained shall not be construed as a waiver of such covenant,
      condition or option in any other instance.

7.04  ATTORNEY'S FEES AND HOMESTEAD. In any action or proceeding brought by
      Landlord as a result of any Default hereunder by Tenant or if any Rent
      owing under this Lease is collected by or through an attorney at law
      (regardless of whether any action or proceeding is commenced by Landlord),
      Tenant agrees to pay all costs and expenses, including court costs and
      reasonable attorneys' fees, incurred by Landlord in connection therewith.
      Tenant waives all homestead rights and exemptions which it may have under
      applicable state or federal law with respect to any obligation owing under
      this Lease.

ARTICLE VIII - ASSIGNMENT AND SUBLETTING, SUBSTITUTION OF SPACE SUBORDINATION
AND ESTOPPEL CERTIFICATES

8.01  ASSIGNMENT AND SUBLETTING.

      A.    Tenant shall not, without the prior written consent of Landlord,
            which consent may be withheld for any reason, assign, transfer,
            mortgage, pledge or hypothecate this Lease or sublet the Premises or
            any portion thereof. As used herein, the term "transfer" shall also
            mean and include the transfer of fifty-one percent (51%) or more
            of the beneficial interest in or the control of Tenant, regardless
            of whether such transfer is made in one (1) single transaction or in
            a series of transactions during the Term of this Lease. Each and
            every transfer or assignment by Tenant of this Lease or any interest
            therein and each and every subletting by Tenant of the Premises
            shall be null and void unless expressly consented to in writing by
            Landlord. Any assignment, transfer or subletting by Tenant which is
            consented to by Landlord shall not relieve or release Tenant from
            any liability hereunder, whether such assignment, transfer or
            subletting be called an assignment or sublease.

                                      -20-