Document:

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                                                                   Exhibit 10.43

                                 LOAN AGREEMENT
                      (EXIM BANK-GUARANTEED LINE OF CREDIT)

      This Loan Agreement (this "Agreement") dated as of June 1, 2000 is between
BANK OF AMERICA, N.A. (the "Bank") and MWI, INC., D/B/A DANAM ELECTRONICS (the
"Borrower").

      1.    DEFINITIONS

            1.1 Defined Terms. In addition to the terms which are defined
elsewhere in this Agreement, the following terms have the meanings indicated for
the purposes of this Agreement:

            "Availability Period" means the period commencing on the date of
      this Agreement and ending on June 30,2001.

            "Borrower Agreement" means that certain Borrower Agreement entered
      into between Bank and Borrower with reference to this credit transaction
      under the Export-Import Bank of the United States Working Capital
      Guarantee Program.

            "Eligible Accounts Receivable" means all of the Borrower's accounts
      that are (i) due from AVL of Austria, (ii) supported by irrevocable
      letters of credit in favor of the Borrower or (iii) due from a foreign
      buyer that is specifically approved by Eximbank and the Bank, in their
      sole and absolute discretion; provided, however, that "Eligible Accounts
      Receivable" shall not include any account that is not covered by the
      Eximbank Guaranty, any account that is not permitted to be included in the
      Export-Related Borrowing Base pursuant to the Borrower Agreement or any
      account that the Bank may from time to time deem to be ineligible.

            "Eligible Inventory" means all of the Borrower's inventory that is
      permitted to be included in the Export-Related Borrowing Base pursuant to
      the Borrower Agreement; provided, that "Eligible Inventory" shall not
      include any inventory that (i) is not covered by the Eximbank Guaranty or
      (ii) that the Bank may from time to time deem to be ineligible.

            "Eximbank" means the Export-Import Bank of the United States.

            "Eximbank Guaranty" means that certain Working Capital Guaranty
      Agreement issued by Eximbank in favor of Bank in support of ninety percent
      (90%) of Borrower's obligations under this Agreement.

            "Export-Related Borrowing Base" means, at the date of determination
      thereof, the sum of the following:

                  (a) 90% of the Eligible Accounts Receivable; and

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                  (b) 75% of the Eligible Inventory.

            "Maximum Amount" means the amount of Two Million U.S. Dollars
      ($2,000,000.00).

            "Note" means the Promissory Note dated of the date herewith by the
      Borrower in favor of the Bank in the amount of $2,000,000 evidencing the
      line of credit established hereby.

            "Prime Rate" means the rate of interest publicly announced from time
      to time by the Bank as its Prime Rate. The Prime Rate is set by the Bank
      based on various factors, including the Bank's costs and desired return,
      general economic conditions and other factors, and is used as a reference
      point for pricing some loans. The Bank may price loans to its customers
      at, above, or below the Prime Rate. Any change in the Prime Rate shall
      take effect at the opening of business on the day specified in the public
      announcement of a change in the Bank's Prime Rate.

            "Termination Date" means the last day of the Availability Period

            1.2 Terms Defined in Borrower Agreement. Capitalized terms not
otherwise defined herein shall have the meanings given to them in the Borrower
Agreement.

      2.    LINE OF CREDIT: AMOUNT AND TERMS

            2.1   Line of Credit Amount.

                  (a) During the Availability Period, the Bank will provide a
      line of credit to the Borrower. This is a revolving line of credit
      providing for cash advances and Standby Letters of Credit. During the
      Availability Period, the Borrower may repay principal amounts and reborrow
      them.

                  (b) The following limitations will apply to the line of
      credit:

                        (i) The outstanding principal balance of advances under
            the line of credit plus the outstanding amounts of any Letters of
            Credit, including amounts drawn on Letters of Credit and not yet
            reimbursed, may not exceed the Maximum Amount.

                        (ii) The outstanding principal balance of advances under
            the line of credit plus the outstanding amounts of any Letters of
            Credit, including amounts drawn on Letters of Credit and not yet
            reimbursed, may not exceed at any one time the Export-Related
            Borrowing Base.

            2.2   Advances under the Line of Credit.

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                  (a) The Borrower will repay in full all principal and any
      unpaid interest or other charges outstanding under this line of credit no
      later than the last day of the Availability Period.

                  (b) The Borrower will pay interest on July 1, 2000, and then
      monthly thereafter on the same day of the month until payment in full of
      any principal outstanding under this line of credit.

                  (c) Advances under the line of credit will bear interest at a
      rate per annum equal to the PRIME Rate plus 1.00 percentage point.

            2.3 Letters of Credit. The Borrower may request the Bank to issue
Standby Letters of Credit subject to the following requirements:

                  (a) Each Letter of Credit shall expire on or before 365 days
      after the date such Letter of Credit is issued. It is provided, however,
      that no Standby Letter of Credit shall expire later than the Termination
      Date, unless the Bank and EximBank otherwise agree.

                  (b) The amount of Letters of Credit outstanding at any one
      time (including amounts drawn on Letters of Credit and not yet reimbursed)
      may not exceed One Million Dollars ($1,000,000.00).

                  (c) The Borrower agrees:

                        (i) to pay the Bank, on demand, all amounts paid by the
            Bank under or in respect of a Letter of Credit issued for the
            Borrower's account. At the option of the Bank, any sum drawn under a
            Letter of Credit may be added to the principal amount outstanding
            under this Agreement. The amount will bear interest and be due as
            described elsewhere in this Agreement.

                        (ii) if there is a default under this Agreement, to
            immediately prepay and make the Bank whole for any outstanding
            Letters of Credit.

                        (iii) that the issuance of any Letter of Credit and any
            amendment to a Letter of Credit is subject to the Bank's written
            approval and must be in form and content satisfactory to the Bank
            and in favor of a beneficiary acceptable to the Bank.

                        (iv) to sign the Bank's form Application and Agreement
            for Standby Letter of Credit.

                        (v) to pay any standard issuance and/or other fees that
            the Bank notifies the Borrower will be charged for issuing and
            processing Letters of Credit for the Borrower.

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                        (vi) to allow the Bank to automatically charge its
            checking account for applicable fees, discounts, and other charges.

            2.4 Mandatory Payment: Additional Collateral. If at any time and for
any reason the total amount of credit outstanding under this Agreement exceeds
the limitations set forth in the Borrower Agreement or in Paragraph 2.1 of this
Agreement, the Borrower shall, upon the Bank's election and demand, (a) pay to
the Bank the amount of the excess; or (b) deliver to the Bank additional
Collateral of a type and in an amount satisfactory to the Bank and Eximbank.
Payments under this Paragraph may be applied to the obligations of the Borrower
to the Bank in the order and manner as the Bank in its discretion may determine.
Payments to be applied to outstanding Letters of Credit and drafts accepted
under Letters of Credit may, at the Bank's option, be used to prepay, or held as
cash collateral to secure, the Borrower's obligations to the Bank with respect
thereto.

            2.5 Mandatory Prepayment. Advances under the line of credit shall be
subject to mandatory prepayment as provided in Section 1 of the Note.

      3.    [INTENTIONALLY OMITTED]

      4.    FEES AND EXPENSES

            4.1   Fees.

                  (a) Eximbank Fees. The Borrower agrees to pay an Eximbank
      guaranty fee in the amount of Thirty Thousand Dollars ($30,000.00),
      payable at closing. In addition, the Borrower agrees to pay the Eximbank
      application fee in the amount of One Hundred Dollars ($ 100.00) on or
      before the date of this Agreement.

                  (b) Waiver Fee. If the Bank, at its discretion, agrees to
      waive or amend any terms of this Agreement, the Borrower will, at the
      Bank's option, pay the Bank a fee for each waiver or amendment in an
      amount advised by the Bank at the time the Borrower requests the waiver or
      amendment. Nothing in this paragraph shall imply that the Bank is
      obligated to agree to any waiver or amendment requested by the Borrower.
      The Bank may impose additional requirements as a condition to any waiver
      or amendment.

                  (c) Unused Commitment Fee. The Borrower agrees to pay a fee on
      any difference between the Maximum Amount and the amount of credit it
      actually uses, determined by the weighted average credit outstanding
      during the specified period. The fee will be calculated at .25% per year.
      The calculation of credit outstanding shall include the undrawn amount of
      Letters of Credit. This fee is due on September 1, 2000, and on the first
      day of each December, March, and June thereafter until the expiration of
      the Availability Period.

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                  (d) Late Fee. To the extent permitted by law, the Borrower
      agrees to pay a late fee in an amount not to exceed four percent (4%) of
      any installment that is more than fifteen (15) days late. The imposition
      and payment of a late fee shall not constitute a waiver of the Bank's
      rights with respect to the default.

                  (e) Fee for Late Financial Statements. Borrower acknowledges
      and agrees that Bank's ability to monitor and evaluate the status of the
      Loan is dependent upon Borrower timely providing financial information
      required herein. In addition to all other rights and remedies Bank has,
      should Borrower fail to timely provide the financial information,
      including declaring the loan to be in default, Bank may charge Borrower a
      late fee of up to 10 basis points (.10%) of the outstanding principal
      balance or committed loan amount, whichever is greater, not to be less
      than $500.00. The charging and/or payment of the fee is not a waiver of
      the Borrower's continuing obligation to provide the required financial
      information

            4.2 Expenses. The Borrower agrees to immediately repay the Bank for
all reasonable costs and expenses incurred by the Bank in connection with this
Agreement, including, but not limited to, filing, recording and search fees.

            4.3 Reimbursement Costs.

                  (a) The Borrower agrees to reimburse the Bank for any
      reasonable expenses it incurs in the preparation of this Agreement and any
      agreement or instrument required by this Agreement. Expenses include, but
      are not limited to, reasonable attorneys' fees, including any allocated
      costs of the Bank's in-house counsel.

                  (b) The Borrower agrees to reimburse the Bank for the cost of
      periodic audits and appraisals of the collateral securing this Agreement,
      at such intervals as the Bank or Eximbank may reasonably require. The
      audits and appraisals may be performed by employees of the Bank or by
      independent appraisers.

      5.    COLLATERAL

            5.1 Personal Property. The Borrower's obligations to the Bank under
this Agreement will be secured by personal property the Borrower now owns or
will own in the future as listed below. The collateral is further defined in
security agreement(s) executed by the Borrower. In addition, any other personal
property collateral (the "Additional Collateral") securing any other present or
future obligations of the Borrower to the Bank which are not guaranteed under
the Eximbank Guaranty (the "Non-Eximbank Indebtedness") shall also secure
Borrower's obligations under this Agreement; provided, however, that the
Additional Collateral shall be applied first to the satisfaction of the
Non-Eximbank Indebtedness and the balance, if any, to the Borrower's obligations
under this Agreement.

            (a)   Inventory.

            (b)   Accounts.

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            (c)   General Intangibles.

            (d)   Equipment.

            (e)   All other assets.

      6.    DISBURSEMENTS, PAYMENTS AND COSTS

            6.1   Disbursements and Payments.

                  (a) Each payment by the Borrower will be made at the Bank's
      banking center (or other location) selected by the Bank from time to time;
      and will be made in immediately available funds, or such other type of
      funds selected by the Bank.

                  (b) Each disbursement by the Bank and each payment by the
      Borrower will be evidenced by records kept by the Bank. In addition, the
      Bank may, at its discretion, require the Borrower to sign one or more
      promissory notes.

            6.2   Telefax Authorization.

                  (a) The Bank may honor telefax instructions for advances or
      repayments given, or purported to be given, by any one of the individuals
      authorized to sign loan agreements on behalf of the Borrower, or any other
      individual designated by any one of such authorized signers.

                  (b) Advances will be deposited in and repayments will be
      withdrawn from the Borrower's account number 4774606493, or such other of
      the Borrower's accounts with the Bank as designated in writing by the
      Borrower.

                  (c) The Borrower will indemnify and hold the Bank harmless
      from all liability, loss, and costs in connection with any act resulting
      from telephone or telefax instructions the Bank reasonably believes are
      made by any individual authorized by the Borrower to give such
      instructions. This paragraph will survive this Agreement's termination,
      and will benefit the Bank and its officers, employees, and agents.

            6.3   Direct Debit.

                  (a) The Borrower agrees that interest and principal payments
      and any fees will be deducted automatically on the due date from the
      Borrower's account number 4774606493, or such other of the Borrower's
      accounts with the Bank as designated in writing by the Borrower.

                  (b) The Borrower will maintain sufficient funds in the account
      on the dates the Bank enters debits authorized by this Agreement. If there
      are insufficient funds

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      in the account on the date the Bank enters any debit authorized by this
      Agreement, the Bank may reverse the debit.

            6.4 Banking Days. Unless otherwise provided in this Agreement, a
banking day is a day other than a Saturday, Sunday or other day on which
commercial banks are authorized to close, or are in fact closed, in the state
where the Bank's lending office is located, and, if such day relates to amounts
bearing interest at an offshore rate (if any), means any such day on which
dealings in dollar deposits are conducted among banks in the offshore dollar
interbank market. All payments and disbursements which would be due on a day
which is not a banking day will be due on the next banking day. All payments
received on a day which is not a banking day will be applied to the credit on
the next banking day.

            6.5   Taxes.

                  (a) If any payments to the Bank under this Agreement are made
      from outside the United States, the Borrower will not deduct any foreign
      taxes from any payments it makes to the Bank. If any such taxes are
      imposed on any payments made by the Borrower (including payments under
      this paragraph), the Borrower will pay the taxes and will also pay to the
      Bank, at the time interest is paid, any additional amount which the Bank
      specifies as necessary to preserve the after-tax yield the Bank would have
      received if such taxes had not been imposed. The Borrower will confirm
      that it has paid the taxes by giving the Bank official tax receipts (or
      notarized copies) within 30 days after the due date.

                  (b) Payments made by the Borrower to the Bank will be made
      without deduction of United States withholding or similar taxes. If the
      Borrower is required to pay U.S. withholding taxes, the Borrower will pay
      such taxes in addition to the amounts due to the Bank under this
      Agreement. If the Borrower fails to make such tax payments when due, the
      Borrower indemnifies the Bank against any liability for such taxes, as
      well as for any related interest, expenses, additions to tax, or penalties
      asserted against or suffered by the Bank with respect to such taxes.

            6.6 Additional Costs. The Borrower will pay the Bank, on demand, for
the Bank's costs or losses arising from any statute or regulation, or any
request or requirement of a regulatory agency which is applicable to all
national banks or a class of all national banks. The costs and losses will be
allocated to the loan in a manner determined by the Bank, using any reasonable
method. The costs include the following:

                  (a) any reserve or deposit requirements; and

                  (b) any capital requirements relating to the Bank's assets and
      commitments for credit.

            6.7 Interest Calculation. Except as otherwise stated in this
Agreement, all interest and fees, if any, will be computed on the basis of a
360-day year and the actual number of days elapsed. This results in more
interest or a higher fee than if a 365-day year is used.

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Installments of principal which are not paid when due under this Agreement shall
continue to bear interest until paid.

            6.8 Default Rate. Upon the occurrence of any default under this
Agreement, principal amounts outstanding under this Agreement will, at the
option of the Bank, bear interest at a rate which is up to the maximum rate
allowed by law. This will not constitute a waiver of any default.

            6.9 Interest Compounding. At the Bank's sole option in each
instance, any interest, fees, costs or disbursements which are not paid when due
under this Agreement shall bear interest from the due date at the Default Rate
set forth above. This may result in compounding of interest.

            6.10 Payments in Kind. The Bank, at its option, may require the
Borrower to deliver to the Bank in kind any payments collected by the Borrower
with respect to Export Orders financed under this Agreement, together with a
schedule of the amount so collected and delivered to the Bank. Such payments
shall be delivered through a lockbox, blocked account, or similar arrangement
acceptable to the Bank and shall be credited to interest, principal, and other
sums owed to the Bank under this Agreement in the order and proportion
determined by the Bank in its sole discretion. All such credits will be
conditioned upon collection and any returned items may, at the Bank's option, be
charged to the Borrower.

      7.    CONDITIONS

            7.1 Conditions to First Extension of Credit. The Bank must receive
the following items, in form and content acceptable to the Bank, before it is
required to extend any credit to the Borrower under this Agreement:

                  (a) Evidence that the execution, delivery and performance by
      the Borrower and each guarantor of this Agreement and any instrument or
      agreement required under this Agreement have been duly authorized.

                  (b) A copy of the certified resolutions of the Board of
      Directors of the Borrower authorizing the Borrower to borrow under this
      Agreement and to execute, deliver and perform its obligations hereunder
      and under all other loan documents.

                  (c) The Borrower Agreement, signed by the Borrower.

                  (d) The Eximbank Guaranty.

                  (e) A completed application in a form acceptable to the Bank
      and Eximbank.

                  (f) Signed original security agreements which the Bank
      requires.

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                  (g) Financing statements and fixture filings (and any
      collateral in which the Bank requires a possessory security interest),
      together with evidence that the security interests and liens in favor of
      the Bank are valid, enforceable, and prior to all others' rights and
      interests, except those the Bank consents to in writing.

                  (h) For any personal property collateral located on real
      property which is subject to a mortgage or deed of trust or which is not
      owned by the Borrower, a subordination or consent to removal from the
      owner of the real property and the holder of any mortgage or deed of
      trust.

                  (i) Evidence of insurance coverage, as required in the
      "Covenants" section of this Agreement.

                  (j) Guaranty signed by Jerry West and a guaranty signed by the
      president of Infolab on its behalf.

                  (k) Evidence of good standing for the Borrower from its state
      of formation and from any other state in which the Borrower is required to
      qualify to conduct its business.

                  (1) Payment of the Eximbank guaranty fee, the Eximbank
      application fee, as required by the paragraphs entitled "Fees" and
      "Expenses", and payment of all accrued and unpaid expenses incurred by the
      .Bank as required by the paragraph entitled "Reimbursement Costs."

                  (m) Intercreditor Agreement signed by Texas Community Bank and
      Trust, N.A. and The Texas Mezzanine Fund reflecting an agreement on
      priority of security interests with the Bank having a first and prior
      security interest in export-related accounts and inventory and at least a
      third priority security interest in all other assets of the Borrower taken
      as collateral for the line of credit.

                  (n) Letter from Exim Bank waiving failure of Borrower to
      comply with certain financial tests.

                  (o) Any other items required by Eximbank in connection with
      the Eximbank Guaranty or which the Bank may reasonably require.

            7.2 Conditions to Each Extension of Credit. Before each extension of
credit, including the first, the Borrower shall deliver the following to the
Bank:

                  (a) A summary of the Export Orders being financed with the
      extension of credit, and, if requested by the Bank, copies of such Export
      Orders.

                  (b) If requested by the Bank, a Borrowing Base Certificate
      which shall be current within five (5) banking days of the date of the
      request.

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      8.    REPRESENTATIONS AND WARRANTIES

            When the Borrower signs this Agreement, and until the Bank is repaid
in full, the Borrower makes the following representations and warranties. Each
request for an extension of credit constitutes a renewal of these
representations and warranties as of the date of the request:

            8.1 Organization of Borrower. The Borrower is a corporation duly
formed and existing under the laws of the state where organized.

            8.2 Authorization. This Agreement, and any instrument or agreement
required hereunder, are within the Borrower's powers, have been duly authorized,
and do not conflict with any of its organizational papers.

            8.3 Enforceable Agreement. This Agreement is a legal, valid and
binding agreement of the Borrower, enforceable against the Borrower in
accordance with its terms, and any instrument or agreement required hereunder,
when executed and delivered, will be similarly legal, valid, binding and
enforceable.

            8.4 Good Standing. In each state in which the Borrower does
business, it is properly licensed, in good standing, and, where required, in
compliance with fictitious name statutes.

            8.5 No Conflicts. This Agreement does not conflict with any law,
agreement, or obligation by which the Borrower is bound.

            8.6 Financial Information. All financial and other information that
has been or will be supplied to the Bank is sufficiently complete to give the
Bank accurate knowledge of the Borrower's (and any guarantor's) financial
condition, including all material contingent liabilities. Since the date of the
most recent financial statement provided to the Bank, there has been no material
adverse change in the business condition (financial or otherwise), operations,
properties or prospects of the Borrower (or any guarantor).

            8.7 Lawsuits. There is no lawsuit, tax claim or other dispute
pending or threatened against the Borrower which, if lost, would impair the
Borrower's financial condition or ability to repay the loan, except as have been
disclosed in writing to the Bank.

            8.8 Collateral. All Collateral required in this Agreement is owned
by the grantor of the security interest free of any title defects or any liens
or interests of others.

            8.9 Permits, Franchises. The Borrower possesses all permits,
memberships, franchises, contracts and licenses required and all trademark
rights, trade name rights, patent rights and fictitious name rights necessary to
enable it to conduct the business in which it is now engaged.

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            8.10 Other Obligations. The Borrower is not in default on any
obligation for borrowed money, any purchase money obligation or any other
material lease, commitment, contract, instrument or obligation.

            8.11 Income Tax Matters. The Borrower has no knowledge of any
pending assessments or adjustments of its income tax for any year.

            8.12 No tax Avoidance Plan. The Borrower's obtaining of credit from
the Bank under this Agreement does not have as a principal purpose the avoidance
of U.S. withholding taxes.

            8.13 No Event of Default. There is no event which is, or with notice
or lapse of time or both would be, a default under this Agreement.

            8.14 Insurance. The Borrower has obtained, and maintained in effect,
the insurance coverage required in the "Covenants" section of this Agreement.

            8.15 ERISA Plans.

                  (a) Each Plan (other than a multiemployer plan) is in
      compliance in all material respects with the applicable provisions of
      ERISA, the Code and other federal or state law. Each Plan has received a
      favorable determination letter from the IRS and to the best knowledge of
      the Borrower, nothing has occurred which would cause the loss of such
      qualification. The Borrower has fulfilled its obligations, if any, under
      the minimum funding standards of ERISA and the Code with respect to each
      Plan, and has not incurred any liability with respect to any Plan under
      Title IV of ERISA.

                  (b) There are no claims, lawsuits or actions (including by any
      governmental authority), and there has been no prohibited transaction or
      violation of the fiduciary responsibility rules, with respect to any Plan
      which has resulted or could reasonably be expected to result in a material
      adverse effect.

                  (c) With respect to any Plan subject to Title IV of ERISA:

                        (i) No reportable event has occurred under Section
            4043(c) of ERISA for which the PBGC requires 30-day notice.

                        (ii) No action by the Borrower or any ERISA Affiliate to
            terminate or withdraw from any Plan has been taken and no notice of
            intent to terminate a Plan has been filed under Section 4041 of
            ERISA.

                        (iii) No termination proceeding has been commenced with
            respect to a Plan under Section 4042 of ERISA, and no event has
            occurred or condition exists which might constitute grounds for the
            commencement of such a proceeding.

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                  (d) The following terms have the meanings indicated for
      purposes of this Agreement:

                        (i) "Code" means the Internal Revenue Code of 1986, as
            amended from time to time.

                        (ii) "ERISA" means the Employee Retirement Income
            Security Act of 1974, as amended from time to time.

                        (iii) "ERISA Affiliate" means any trade or business
            (whether or not incorporated) under common control with the Borrower
            within the meaning of Section 414(b) or (c) of the Code.

                        (iv) "PBGC" means the Pension Benefit Guaranty
            Corporation.

                        (v) "Plan" means a pension, profit-sharing, or stock
            bonus plan intended to qualify under Section 401 (a) of the Code,
            maintained or contributed to by the Borrower or any ERISA Affiliate,
            including any multiemployer plan within the meaning of Section 4001
            (a)(3) of ERISA.

            8.16 [INTENTIONALLY OMITTED]

            8.17 Location of Borrower. The Borrower's place of business (or, if
the Borrower has more than one place of business, its chief executive office) is
located at the address listed on the signature page of this Agreement.

            8.18 Environmental Matters. The Borrower (a) is not in violation of
any health, safety, or environmental law or regulation regarding hazardous
substances and (b) is not the subject of any claim, proceeding, notice, or other
communication regarding hazardous substances. "Hazardous substances" means any
substance, material or waste that is or becomes designated or regulated as
"toxic," "hazardous," "pollutant," or "contaminant" or a similar designation or
regulation under any federal, state or local law (whether under common law,
statute, regulation or otherwise) or judicial or administrative interpretation
of such, including without limitation petroleum or natural gas.

            8.19 Compliance with Laws. No consent or approval of any public
authority or other third party is required as a condition to the validity of any
Loan Document, and Borrower is in compliance with all laws and regulatory
requirements to which it is subject.

            8.20 Trading With the Enemy. Neither the execution of this Agreement
nor the use of proceeds thereof violates the Trading With the Enemy Act of 1917,
as amended, nor any of the foreign assets control regulations promulgated
thereunder or under the International Emergency Economic Powers Act or the U.N,
Participation Act of 1945.

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      9.    COVENANTS

      The Borrower agrees, so long as credit is available under this Agreement
and until the Bank is repaid in full:

            9.1 Use of Proceeds. To use the proceeds of the line of credit only
for the purposes permitted under Section 2.1 of the Borrower Agreement and not
in violation of the Acts referred to in Section 8.20 above.

            9.2 Compliance with Borrower Agreement. To comply with each of the
terms, covenants and provisions of the Borrower Agreement. In the event of any
conflict between any provision of this Agreement and a comparable provision in
the Borrower Agreement, the Borrower shall comply with whichever provision is
more restrictive or imposes a greater burden or obligation on the Borrower.

            9.3 Financial Information. To provide the following financial
information and statements in form and content acceptable to the Bank, and such
additional information as requested by the Bank from time to time:

                  (a) Within 120 days of the Borrower's fiscal year end, the
      Borrower's annual consolidated and consolidating financial statements,
      certified and dated by an authorized financial officer of the Borrower.
      These financial statements must be compiled by a Certified Public
      Accountant acceptable to the Bank and shall include income statement,
      balance sheet and cash flow statement.

                  (b) Within 45 days of the end of each fiscal quarter the
      Borrower's quarterly consolidated and consolidating financial statements,
      certified and dated by an authorized financial officer of the Borrower.
      These financial statements may be Borrower prepared and shall include
      income statement, balance sheet and cash flow statement.

                  (c) Promptly, upon sending or receipt, copies of any
      management letters and correspondence relating to management letters, sent
      or received by the Borrower to or from the Borrower's auditor.

                  (d) Copies of the Borrower's federal income tax return
      (together with proof of payment of any tax due), within 30 days of filing,
      and, if requested by the Bank, copies of any extensions of the filing
      date.

                  (e) Annual financial statements of Jerry West in form
      satisfactory to the Bank within 120 days of each calendar year end and
      such guarantor's federal income tax return within 30 days after the filing
      of such return.

                  (f) With the submission of each of the financial statements
      required in 9.3(a) and (b) above, a compliance certificate of the Borrower
      signed by an authorized financial officer of the Borrower setting forth
      (i) the information and computations (in

                                       13

<PAGE>

      sufficient detail) to establish that the Borrower is in compliance with
      all financial covenants at the end of the period covered by the financial
      statements then being furnished and (ii) whether there existed as of the
      date of such financial statements and whether there exists as of the date
      of the certificate, any default under Article 11 of this Agreement and, if
      any such default exists, specifying the nature thereof and the action the
      Borrower is taking and proposes to take with respect thereto.

                  (g) Promptly upon receipt, copies of all notices, orders, or
      other communications regarding (i) any enforcement action by any
      governmental authority relating to health, safety, the environment, or any
      hazardous substances with regard to the Borrower's property, activities,
      or operations, or (ii) any claim against the Borrower regarding hazardous
      substances.

                  (h) A Borrowing Base Certificate in the form of Exhibit 9.3(h)
      attached hereto setting forth the Borrowing Base as of the last day of
      each month, within 20 days after the end of each month, and, if requested
      by the Bank, copies of the Export Orders relating to Accounts Receivable
      and Inventory, to the extent included in the Borrowing Base.

                  (i) An Accounts Receivable aging report detailing the terms of
      the amounts due from each Buyer as of the last day of each month, within
      20 days after the end of each month.

                  (j) A statement showing an aging of accounts payable, within
      20 days after the end of each month.

                  (k) An Inventory schedule within 20 days after the end of each
      month; the schedule must include a description of the Inventory, its
      location and cost, and such other information as the Bank may require.

                  (l) A listing of the names and addresses of all Buyers
      obligated upon the Borrower's Accounts Receivable within 20 days after the
      end of each quarter.

                  (m) Within 120 days of Infolab, Inc.'s fiscal year end,
      Infolab, Inc.'s annual consolidated and consolidating financial
      statements, certified and dated by an authorized financial officer of
      Infolab, Inc. These financial statements must be audited by a Certified
      Public Accountant acceptable to the Bank and shall include income
      statement, balance sheet and cash flow statement.

                  (n) Within 45 days of the end of each fiscal semi-annual
      period, Infolab, Inc.'s semi-annual consolidated and consolidating
      financial statements, certified and dated by an authorized financial
      officer of Infolab, Inc.. These financial statements may be Borrower
      prepared and shall include income statement, balance sheet and cash flow
      statement.

                                       14

<PAGE>

                  (o) With the submission of each of the financial statements
      required in 9.3(m) and (n) above, a compliance certificate of Infolab,
      Inc. signed by an authorized financial officer of Infolab, Inc. setting
      forth (i) the information and computations (in sufficient detail) to
      establish that Infolab, Inc. is in compliance with all financial covenants
      at the end of the period covered by the financial statements then being
      furnished and (ii) whether there existed as of the date of such financial
      statements and whether there exists as of the date of the certificate, any
      default under this Agreement and, if any such default exists, specifying
      the nature thereof and the action Infolab, Inc. is taking and proposes to
      take with respect thereto.

                  (p) Promptly upon the Bank's request, such other books,
      records, statements, lists of property and accounts, budgets, forecasts or
      reports as to the Borrower and as to each guarantor of the Borrower's
      obligations to the Bank as the Bank may request.

            9.4 Other Debts. Not to have outstanding or incur any direct or
contingent liabilities or lease obligations (other than those to the Bank), or
become liable for the liabilities of others, without the Bank's written consent.
This does not prohibit:

                  (a) Acquiring goods, supplies, or merchandise on normal trade
      credit.

                  (b) Endorsing negotiable instruments received in the usual
      course of business.

                  (c) Obtaining surety bonds in the usual course of business.

                  (d) Liabilities, lines of credit and leases in existence on
      the date of this Agreement described in Exhibit 9.4 attached hereto, or
      any renewal thereof, together with any replacement facility necessary to
      comply with Section 11.18 hereof.

                  (e) Additional debts and lease obligations for the
      acquisition of fixed assets, in an aggregate amount not exceeding $25,000.

            9.5 Other Liens. Not to create, assume, or allow any security
interest or lien (including judicial liens) on property the Borrower now or
later owns, except:

                  (a) Liens and security interests in favor of the Bank.

                  (b) Liens for taxes not yet due.

                  (c) Liens outstanding on the date of this Agreement described
      in Exhibit 9.5 attached hereto.

            9.6 Dividends. Not to declare or pay any dividends on any of its
shares or otherwise make distributions, except an amount sufficient to cover
shareholders' federal and

                                       15

<PAGE>

state income tax liability for the immediately preceding year arising as a
direct result of the Borrower's reported income for such year.

            9.7 Loans to Officers or Affiliates. Not to make any loans, advances
or other extensions of credit (including extensions of credit in the nature of
accounts receivable or notes receivable arising from the sale or lease of goods
or services) to any of the Borrower's executives, officers, directors or
shareholders (or any relatives of any of the foregoing), or to any affiliated
entities (other than Infolab, Inc.

            9.8 Loans and Investments. Not to have any existing, or make any
new, loans or other extensions of credit to, or investments in, any individual
or entity, or make any capital contributions or other transfers of assets to any
individual or entity, except for:

                  (a) additional capital investments in the Borrower's current
      subsidiaries.

                  (b) extensions of credit in the nature of accounts receivable
      or notes receivable arising from the sale or lease of goods or services in
      the ordinary course of business to non-affiliated entities.

                  (c) investments in U.S. treasury bills and other obligations
      of the federal government.

            9.9 Change of Ownership. Not to cause, permit, or suffer any change,
direct or indirect, in the Borrower's capital ownership.

            9.10 Change of Management. Not to make any substantial change in its
present executive or management personnel.

            9.11 Notices to Bank. To promptly notify the Bank in writing of:

                  (a) any lawsuit against the Borrower (or any guarantor).

                  (b) any substantial dispute between the Borrower (or any
      guarantor) and any government authority.

                  (c) any event of default under this Agreement, or any event
      which, with notice or lapse of time or both, would constitute an event of
      default.

                  (d) any material adverse change in the Borrower's (or any
      guarantor's) business condition (financial or otherwise), operations,
      properties or prospects, or ability to repay the credit.

                  (e) any change in the Borrower's name, legal structure, place
      of business or chief executive office.

                                       16

<PAGE>

                  (f) any actual or contingent liabilities of the Borrower (or
      any guarantor) in an amount greater than $25,000 not previously disclosed
      to the Bank in writing, and any contingent liabilities that are reasonably
      foreseeable.

                  (g) Reserved.

                  (h) the receipt of any notice or communication regarding (i)
      any threatened or pending investigation or enforcement action by any
      governmental authority or any other claim relating to health, safety, the
      environment, or any hazardous substances with regard to the Borrower's
      property, activities, or operations or (ii) any belief or suspicion of the
      Borrower that hazardous substances exist on or under the Borrower's real
      property.

                  (i) any event of default under any agreement of the Borrower
      (or any guarantor) in connection with credit facility with any lender, or
      any event which, with notice or lapse of time or both, would constitute an
      event of default under any such facility.

            9.12 Books and Records. To maintain adequate books and records.

            9.13 Audits. To allow the Bank and its agents to inspect the
Borrower's properties and examine, audit, and make copies of books and records
at any reasonable time. If any of the Borrower's properties, books or records
are in the possession of a third party, the Borrower authorizes that third party
to permit the Bank or its agents to have access to perform inspections or audits
and to respond to the Bank's requests for information concerning such
properties, books and records. Semi-annual field audits by the Bank's
Asset-Based Lending Division (and any audit after an Event of Default has
occurred) shall be at the Borrower's expense.

            9.14 Compliance with Laws. To comply with the laws (including any
fictitious name statute), regulations, and orders of any government body with
authority over the Borrower's business.

            9.15 Preservation of Rights. To maintain and preserve all rights,
privileges, and franchises the Borrower now has.

            9.16 Maintenance of Properties. To make any repairs, renewals, or
replacements to keep the Borrower's properties in good working condition.

            9.17 Perfection of Liens. To help the Bank perfect and protect its
security interests and liens, and reimburse it for related costs it incurs to
protect its security interests and liens.

            9.18 Cooperation. To take any action reasonably requested by the
Bank to carry out the intent of this Agreement.

                                       17

<PAGE>

            9.19 Insurance.

                  (a) Insurance Covering Collateral. To maintain all risk
      property damage insurance policies covering the tangible property
      comprising the collateral. Each insurance policy must be in an amount
      acceptable to the Bank. The insurance must be issued by an insurance
      company acceptable to the Bank and must include a lender's loss payable
      endorsement in favor of the Bank in a form acceptable to the Bank.

                  (b) General Business Insurance. To maintain insurance
      satisfactory to the Bank as to amount, nature and carrier covering
      property damage (including loss of use and occupancy) to any of the
      Borrower's properties, public liability insurance including coverage for
      contractual liability, product liability and workers' compensation,
      business interruption insurance and any other insurance which is usual for
      the Borrower's business.

                  (c) Evidence of Insurance. Upon the request of the Bank, to
      deliver to the Bank a copy of each insurance policy, or, if permitted by
      the Bank, a certificate of insurance listing all insurance in force.

                  (d) Export Credit Insurance. In the event the Borrower obtains
      any credit insurance with respect to Eligible Accounts Receivable, either
      such insurance shall be assigned to the Bank or the Bank shall be loss
      payee.

            9.20 Additional Negative Covenants. Not to, without the Bank's
written consent:

                  (a) engage in any business activities substantially different
      from the Borrower's present business.

                  (b) liquidate or dissolve the Borrower's business.

                  (c) consumate any consolidation, merger, or other combination,
      or become a partner in a partnership, a member of a joint venture, or a
      member of a limited liability company.

                  (d) sell, assign, lease, transfer or otherwise dispose of any
      assets for less than fair market value, or enter into any agreement to do
      so.

                  (e) sell, assign, lease, transfer or otherwise dispose of any
      part of the Borrower's business or the Borrower's assets except in the
      ordinary course of the Borrower's business.

                  (f) enter into any sale and leaseback agreement covering any
      of its fixed assets.

                  (g) acquire or purchase a business or its assets.

                                       18

<PAGE>

                  (h) voluntarily suspend its business other than weekends,
      holidays and vacation periods not to exceed three consecutive weeks.

            9.21 No Consumer Purpose. Not to use this loan for personal, family,
or household purposes. The Bank may provide the Borrower (or any guarantor) with
certain disclosures intended for loans made for personal, family, or household
purposes. The fact that the Bank elects to make such disclosures shall not be
deemed a determination by the Bank that the loan will be used for such purposes.

            9.22 Bank as Principal Depository. To maintain the Bank as its
principal depository bank, including for the maintenance of business, cash
management, operating and administrative deposit accounts.

            9.23 ERISA Plans. Promptly during each year, to pay and cause any
subsidiaries to pay contributions adequate to meet at least the minimum funding
standards under ERISA with respect to each and every Plan; file each annual
report required to be filed pursuant to ERISA in connection with each Plan for
each year; and notify the Bank within ten (10) days of the occurrence of any
Reportable Event that might constitute grounds for termination of any capital
Plan by the Pension Benefit Guaranty Corporation or for the appointment by the
appropriate United States District Court of a trustee to administer any Plan.
"ERISA" means the Employee Retirement Income Security Act of 1974, as amended
from time to time. Capitalized terms in this paragraph" shall have the meanings
defined within ERISA.

            9.24 Reserved.

            9.25 Compliance with Environmental Requirements. With regard to the
Borrower's property, activities, or operations, to comply with the
recommendations of any qualified environmental engineer or orders or directions
issued by any governmental authority relating to health, safety, the
environment, or any hazardous substances including those orders or directives
requiring the investigation, clean-up, or removal of hazardous substances.

            9.26 Accounting Policies. To maintain accounting policies that
comply with generally accepted accounting principles, to be applied consistently
throughout the term of this Agreement.

            9.27 Minimum Tangible Net Worth. To maintain, on a consolidated
basis, tangible net worth equal to at least $1,150,000. 'Tangible Net Worth"
means the gross book value of the Borrower's assets (excluding goodwill,
patents, trademarks, trade names, organization expenses, unamortized debt
discount and expense, capitalized or deferred research and development costs,
deferred marketing expenses, deferred receivables, and other like intangibles,
and monies due from officers, directors or employees.

      10.   [INTENTIONALLY OMITTED]

      11.   DEFAULT

                                       19

<PAGE>

      If any of the following events occurs, the Bank may do one or more of the
following: declare the Borrower in default, stop making any additional credit
available to the Borrower, and require the Borrower to repay its entire debt
immediately and without prior notice. If an event of default occurs under the
paragraph entitled "Bankruptcy," below, with respect to the Borrower or any
guarantor, then the entire debt outstanding under this Agreement will
automatically be due immediately.

            11.1 Failure to Pay. The Borrower fails to make a payment under this
Agreement when due.

            11.2 Lien Priority. The Bank fails to have an enforceable first lien
(except for any prior liens to which the Bank has consented in writing) on or
security interest in any property given as security for this Agreement (or any
guaranty).

            11.3 False Information. The Borrower (or any guarantor) has given
the Bank false or misleading information or representations.

            11.4 Death or Incompetency. Any guarantor dies or becomes legally
incompetent.

            11.5 Bankruptcy. The Borrower (or any guarantor) files a bankruptcy
petition, a bankruptcy petition is filed against the Borrower (or any guarantor)
or the Borrower (or any guarantor) makes a general assignment for the benefit of
creditors.

            11.6 Receivers. A receiver or similar official is appointed for a
substantial portion of the Borrower's (or any guarantor's) business, or the
business is terminated, or any guarantor is liquidated or dissolved.

            11.7 Lawsuits. Any lawsuit or lawsuits are filed against the
Borrower (or any guarantor); except for lawsuits in an aggregate amount within
applicable insurance coverage, provided that the insurer has issued a letter of
responsibility for payment up to the amount of insurance coverage.

            11.8 Judgments. Any judgments or arbitration awards are entered
against the Borrower (or any guarantor), or the Borrower (or any guarantor)
enters into any settlement agreements with respect to any litigation or
arbitration, in an aggregate amount in excess of any insurance coverage and for
which the insurer has issued a letter of responsibility for payment up to the
amount of insurance coverage.

            11.9 Government Action. Any government authority takes action that
the Bank believes materially adversely affects the Borrower's (or any
guarantor's) financial condition or ability to repay.

            11.10 Material Adverse Change. A material adverse change occurs, or
is reasonably likely to occur, in the Borrower's (or any guarantor's) business
condition (financial or otherwise), operations, properties or prospects, or
ability to repay the credit.

                                       20

<PAGE>

            11.11 Cross-default. Any default occurs under any agreement in
connection with any credit the Borrower (or any guarantor) or any of the
Borrower's related entities or affiliates has obtained from anyone else or which
the Borrower (or any guarantor) or any of the Borrower's related entities or
affiliates has guaranteed if the default (a) consists of failing to make a
payment when due or breaching a financial covenant or (b) gives the other lender
the right to accelerate the obligation.

            11.12 Default under Related Documents. Any default occurs under any
guaranty, subordination agreement, security agreement, deed of trust, mortgage,
or other document required by or delivered in connection with this Agreement or
any such document is no longer in effect.

            11.13 Other Bank Agreements. The Borrower (or any guarantor) or any
of the Borrower's related entities or affiliates fails to meet the conditions
of, or fails to perform any obligation under any other agreement the Borrower
(or any guarantor) or any of the Borrower's related entities or affiliates has
with the Bank or any affiliate of the Bank.

            11.14 ERISA Plans. Any one or more of the following events occurs
with respect to a Plan of the Borrower subject to Title IV of ERISA, provided
such event or events could reasonably be expected, in the judgment of the Bank,
to subject the Borrower to any tax, penalty or liability (or any combination of
the foregoing) which, in the aggregate, could have a material adverse effect on
the financial condition of the Borrower:

                  (a) A reportable event shall occur under Section 4043(c) of
      ERISA with respect to a Plan.

                  (b) Any Plan termination (or commencement of proceedings to
      terminate a Plan) or the full or partial withdrawal from a Plan by the
      Borrower or any ERISA Affiliate.

            11.15 [INTENTIONALLY OMITTED]

            11.16 Breach Under Borrower Agreement. The Borrower breaches or
defaults under any term, condition or provision of the Borrower Agreement.

            11.17 Other Breach Under Agreement. The Borrower fails to meet the
conditions of, or fails to perform any obligation under, any term of this
Agreement not specifically referred to in this Article. This includes any
failure or anticipated failure by the Borrower to comply with any financial
covenants set forth in this Agreement, whether such failure is evidenced by
financial statements delivered to the Bank or is otherwise known to the Borrower
or the Bank.

            11.18 Domestic Revolving Credit Facility. The Borrower fails to
maintain a revolving credit facility in an amount of at least $750,000 with a
financial institution for the financing of accounts and inventory that are not
related to export from the United States.

                                       21

<PAGE>

      12.   ENFORCING THIS AGREEMENT; MISCELLANEOUS

            12.1 GAAP. Except as otherwise stated in this Agreement, all
financial information provided to the Bank and all financial covenants will be
made under generally accepted accounting principles, consistently applied.

            12.2 Governing Law. This Agreement is governed by Texas law.

            12.3 Successors and Assigns. This Agreement is binding on the
Borrower's and the Bank's successors and assignees. The Borrower agrees that it
may not assign this Agreement without the Bank's prior consent. The Bank may
sell participations in or assign this loan, and may exchange financial
information about the Borrower with actual or potential participants or
assignees. If a participation is sold or the loan is assigned, the purchaser
will have the right of set-off against the Borrower.

            12.4 Severability; Waivers. If any part of this Agreement is not
enforceable, the rest of the Agreement may be enforced. The Bank retains all
rights, even if it makes a loan after default. If the Bank waives a default, it
may enforce a later default. Any consent or waiver under this Agreement must be
in writing.

            12.5 Administration Costs. The Borrower shall pay the Bank for all
reasonable costs incurred by the Bank in connection with administering this
Agreement.

            12.6 Attorneys' Fees. The Borrower shall reimburse the Bank for any
reasonable costs and attorneys' fees incurred by the Bank in connection with the
enforcement or preservation of any rights or remedies under this Agreement and
any other documents executed in connection with this Agreement, and in
connection with any amendment, waiver, "workout" or restructuring under this
Agreement. In the event of a lawsuit or arbitration proceeding, the prevailing
party is entitled to recover costs and reasonable attorneys' fees incurred in
connection with the lawsuit or arbitration proceeding, as determined by the
court or arbitrator. In the event that any case is commenced by or against the
Borrower under the Bankruptcy Code (Title 11, United States Code) or any similar
or successor statute, the Bank is entitled to recover costs and reasonable
attorneys' fees incurred by the Bank related to the preservation, protection, or
enforcement of any rights of the Bank in such a case. As used in this paragraph,
"attorneys' fees" includes the allocated costs of the Bank's in-house counsel.

            12.7 [INTENTIONALLY OMITTED]

            12.8 [INTENTIONALLY OMITTED]

            12.9 Final Agreement. This Agreement, the Borrower Agreement, and
any related security or other agreements required by this Agreement,
collectively:

                  (a) represent the sum of the understandings and agreements
      between the Bank and the Borrower concerning this credit;

                                       22

<PAGE>

                  (b) replace any prior oral or written agreements between the
      Bank and the Borrower concerning this credit; and

                  (c) are intended by the Bank and the Borrower as the final,
      complete and exclusive statement of the terms agreed to by them.

In the event of any conflict between this Agreement and any other agreements
required by this Agreement, this Agreement will prevail; provided, however, that
in the event of any conflict between any provision of this Agreement and a
comparable provision in the Borrower Agreement, whichever provision is more
restrictive or imposes a greater obligation on the Borrower shall prevail.

            12.10 Disposition of Schedules Delivered by Borrower. The Bank shall
be under no obligation to return any schedules, invoices, statements, budgets,
forecasts, reports or other papers delivered by the Borrower and may destroy or
otherwise dispose of such items as the Bank, in its discretion, deems
appropriate.

            12.11 Verification of Accounts Receivable. The Bank may at any time,
either orally or in writing, request confirmation from any Buyer of the current
amount and status of the Account Receivable upon which such Buyer is obligated.

            12.12 Indemnification. The Borrower will indemnify and hold the Bank
harmless from any loss, liability, damages, judgments, and costs of any kind
relating to or arising directly or indirectly out of (a) this Agreement or any
document required hereunder, (b) any credit extended or committed by the Bank to
the Borrower hereunder, and (c) any litigation or proceeding related to or
arising out of this Agreement, any such document, or any such credit. This
indemnity includes but is not limited to attorneys' fees (including the
allocated cost of in-house counsel). This indemnity extends to the Bank, its
parent, subsidiaries and all of their directors, officers, employees, agents,
successors, attorneys, and assigns. This indemnity will survive repayment of the
Borrower's obligations to the Bank. All sums due to the Bank hereunder shall be
obligations of the Borrower, due and payable immediately without demand.

            12.13 Release of Information to Eximbank. The Borrower authorizes
the Bank to release to Eximbank such information and records as Eximbank may
from time to time request concerning matters relating to this Agreement and any
other loans or extensions of credit provided by the Bank to the Borrower.

            12.14 Notices. All notices required under this Agreement shall be
personally delivered or sent by first class mail, postage prepaid, or by
overnight courier, to the addresses on the signature page of this Agreement, or
sent by facsimile to the fax numbers listed on the signature page, or to such
other addresses as the Bank and the Borrower may specify from time to time in
writing. Notices sent by first class mail shall be deemed delivered on the
earlier of actual receipt or on the fourth business day after deposit in the
U.S. mail.

                                       23

<PAGE>

            12.15 Headings. Article and paragraph headings are for reference
only and shall not affect the interpretation or meaning of any provisions of
this Agreement.

            12.16 Counterparts. This Agreement may be executed in as many
counterparts as necessary or convenient, and by the different parties on
separate counterparts each of which, when so executed, shall be deemed an
original but all such counterparts shall constitute but one and the same
agreement.

            12.17 Commitment Expiration. The Bank's commitment to extend credit
under this Agreement will expire on June 30, 2000, unless this Agreement and any
documents required by this Agreement have been signed and returned to the Bank
on or before that date.

This Agreement is executed as of the date stated at the top of the first page.

BANK OF AMERICA, N.A.                      MWI,INC., d/b/a Danam Electronics

By: /s/ Richard H. Vitale                  By /s/ Jerry West
    ---------------------------------         ----------------------------------
    Richard H. Vitale                         Jerry West
    Assistant Vice President                  President

Address where notices to                   Address where notices to the
the Bank are to be sent:                   Borrower are to be sent:

Commercial Banking Group                   4230 Shilling Way
901 Main Street, 7th Floor                 Dallas, Texas 75237
TX1-492-07-01
Dallas, Texas 75202

                                       24

<PAGE>

                                 EXHIBIT 9.3(h)

                       FORM OF BORROWING BASE CERTIFICATE

                                 Exhibit 9.3(h)
<PAGE>

                                   EXHIBIT 9.4

                             EXISTING INDEBTEDNESS

$750,000 Line of Credit from Texas Community Bank & Trust, N.A.

$500,000 Loan from The Texas Mezzanine Fund

                                  Exhibit 9.4
<PAGE>

                                   EXHIBIT 9.5

                                 EXISTING LIENS

Liens more particularly described in the UCC-1 financing statements attached
hereto in favor of (a) Texas Community Bank and Trust, N.A. and (b) The Texas
Mezzanine Fund.

                                  Exhibit 9.5<PAGE>
                                                                   Exhibit 10.44

                                      BORROWER: MWI,INC., d/b/a DANAM
                                                ELECTRONICS

                                      GUARANTOR: JERRY WEST

                                    GUARANTY
                      (EXIM BANK-GUARANTEED LINE OF CREDIT)

To: BANK OF AMERICA, N.A.

      1.    The Guaranty. For valuable consideration, the undersigned
("Guarantor") hereby unconditionally guarantees and promises to pay promptly to
Bank of America, N.A., or order, in lawful money of the United States, any and
all Indebtedness of MWI; Inc., d/b/a Danam Electronics ("Borrower") to Bank when
due, whether at stated maturity, upon acceleration or otherwise, and at all
times thereafter, subject to such limitations on Guarantor's liability as are
set forth below. This Guaranty is cumulative and does not supersede any other
outstanding guaranties, and the liability of Guarantor under this Guaranty is
exclusive of Guarantor's liability under any other guaranties signed by
Guarantor. If more than one individual or entity sign this Guaranty, their
obligations under this Guaranty shall be joint and several.

The liability of Guarantor under this Guaranty shall be limited to the
Indebtedness under the Loan Documents, and shall not exceed at any one time the
sum of (a) the principal amount of the Indebtedness under such Loan Documents
plus (b) all interest, fees, indemnities (including, without limitation,
hazardous waste indemnities), and other costs and expenses relating to or
arising out of the Indebtedness under such Loan Documents.

      2.    Definitions.

            (a) "Borrower" shall mean the individual or the entity named in
      Paragraph 1 of this Guaranty and, if more than one, then any one or more
      of them.

            (b) "Guarantor" shall mean the individual or the entity signing this
      Guaranty and, if more than one, then any one or more of them.

            (c) "Indebtedness" shall mean any and all debts, liabilities, and
      obligations of Borrower to Bank, now or hereafter existing, whether
      voluntary or involuntary and however arising, whether direct or indirect
      or acquired by Bank by assignment, succession, or otherwise, whether due
      or not due, absolute or contingent, liquidated or unliquidated, determined
      or undetermined, held or to be held by Bank for its own account or as
      agent for another or others, whether Borrower may be liable individually
      or jointly with others, whether recovery upon such debts, liabilities, and
      obligations may be or hereafter become barred by any statute of
      limitations, and whether such debts, liabilities, and obligations may be
      or hereafter become otherwise unenforceable.

<PAGE>

            (d) "Loan Documents" shall mean that certain Loan Agreement (Exim
      Bank-Guaranteed Line of Credit) dated June 1, 2000, between Borrower and
      Bank (the "Loan Agreement") and any promissory notes from Borrower in
      favor of Bank evidencing or relating to any of the Indebtedness, and deeds
      of trust, mortgages, security agreements, and other agreements, documents,
      and instruments executed by Borrower in connection with the Loan
      Agreement, as such Loan Agreement, promissory notes, and other agreements,
      documents, and instruments are now in effect and as hereafter amended,
      restated, renewed or superseded.

      3.    Obligations Independent. The obligations hereunder are independent
of the obligations of Borrower or any other guarantor, and a separate action or
actions may be brought and prosecuted against Guarantor whether action is
brought against Borrower or any other guarantor or whether Borrower or any other
guarantor be joined in any such action or actions. Anyone executing this
Guaranty shall be bound by its terms without regard to execution by anyone else.

      4.    Rights of Bank. Guarantor authorizes Bank, without notice or demand
and without affecting its liability hereunder, from time to time to:

            (a) renew, compromise, extend, accelerate, or otherwise change the
      time for payment, or otherwise change the terms, of the Indebtedness or
      any part thereof, including increase or decrease of the rate of interest
      thereon, or otherwise change the terms of any Loan Documents;

            (b) receive and hold security for the payment of this Guaranty or
      any Indebtedness and exchange, enforce, waive, release, fail to perfect,
      sell, or otherwise dispose of any such security;

            (c) apply such security and direct the order or manner of sale
      thereof as Bank in its discretion may determine;

            (d) permit the Indebtedness to exceed Guarantor's liability under
      this Guaranty, and apply any amounts received from any source, other than
      from Guarantor, to any unguaranteed portion of the Indebtedness; and

            (e) release or substitute any Guarantor or any one or more of any
      endorsers or other guarantors of any of the Indebtedness.

      5.    Guaranty to be Absolute. Guarantor agrees that until the
Indebtedness has been paid in full and any commitments of Bank or facilities
provided by Bank with respect to the Indebtedness have been terminated,
Guarantor shall not be released by or because of the taking, or failure to take,
any action that might in any manner or to any extent vary the risks of Guarantor
under this Guaranty or that, but for this paragraph, might discharge or
otherwise reduce, limit, or modify Guarantor's obligations under this Guaranty.
Guarantor waives and surrenders any defense to any liability under this Guaranty
based upon any such action, including but not limited to any action of Bank
described in the immediately

                                       2

<PAGE>

preceding paragraph of this Guaranty. It is the express intent of Guarantor that
Guarantor's obligations under this Guaranty are and shall be absolute and
unconditional.

      6.    Guarantor's Waivers of Certain Rights and Certain Defenses.
Guarantor waives:

            (a) any right to require Bank to proceed against Borrower, proceed
      against or exhaust any security for the Indebtedness, or pursue any other
      remedy in Bank's power whatsoever;

            (b) any defense arising by reason of any disability or other defense
      of Borrower, or the cessation from any cause whatsoever of the liability
      of Borrower;

            (c) any defense based on any claim that Guarantor's obligations
      exceed or are more burdensome than those of Borrower; and

            (d) the benefit of any statute of limitations affecting Guarantor's
      liability hereunder.

No provision or waiver in this Guaranty shall be construed as limiting the
generality of any other waiver contained in this Guaranty.

      7.    Waiver of Subrogation. Until the Indebtedness has been paid in full
and any commitments of Bank or facilities provided by Bank with respect to the
Indebtedness have been terminated, even though the Indebtedness may be in excess
of Guarantor's liability hereunder, Guarantor waives any right of subrogation,
reimbursement, indemnification, and contribution (contractual, statutory, or
otherwise) including, without limitation, any claim or right of subrogation
under the Bankruptcy Code (Title 11, United States Code) or any successor
statute, arising from the existence or performance of this Guaranty, and
Guarantor waives any right to enforce any remedy which Bank now has or may
hereafter have against Borrower, and waives any benefit of, and any right to
participate in, any security now or hereafter held by Bank.

      8.    Waiver of Notices. Guarantor waives all presentments, demands for
performance, notices of nonperformance, protests, notices of protest, notices
of dishonor, notices of intent to accelerate, notices of acceleration, notices
of any suit or any other action against Borrower or any other person, any other
notices to any party liable on any Loan Document (including Guarantor), notices
of acceptance of this Guaranty, and notices of the existence, creation, or
incurring of new or additional Indebtedness to which this Guaranty applies or
any other Indebtedness of Borrower to Bank.

      9.    [INTENTIONALLY OMITTED]

      10.   Security. To secure all of Guarantor's obligations hereunder,
Guarantor assigns and grants to Bank a security interest in all moneys,
securities, and other property of Guarantor now or hereafter in the possession
of Bank, all deposit accounts of Guarantor

                                       3

<PAGE>

maintained with Bank, and all proceeds thereof. Upon default or breach of any of
Guarantor's obligations to Bank, Bank may apply any deposit account to reduce
the Indebtedness, and may foreclose any collateral as provided in the Uniform
Commercial Code and in any security agreements between Bank and Guarantor.

      11.   Subordination. Any obligations of Borrower to Guarantor, now or
hereafter existing, including but not limited to any obligations to Guarantor as
subrogee of Bank or resulting from Guarantor's performance under this Guaranty,
are hereby subordinated to the Indebtedness. Such obligations of Borrower to
Guarantor if Bank so requests shall be enforced and performance received by
Guarantor as trustee for Bank, and the proceeds, thereof shall be paid over to
Bank on account of the Indebtedness, but without reducing or affecting in any
manner the liability of Guarantor under the other provisions of this Guaranty.
Any security interest, lien, or other encumbrance that Guarantor may now or
hereafter have on any property of Borrower is hereby subordinated to any
security interest, lien, or other encumbrance that Bank may have on any such
property.

      12.   Revocation of Guaranty.

            (a) This Guaranty may be revoked at any time by Guarantor in respect
      to future transactions, unless there is a continuing consideration as to
      such transactions which Guarantor does not renounce. Such revocation shall
      be effective upon actual receipt by Bank, at the address shown below or at
      such other address as may have been provided to Guarantor by Bank, of
      written notice of revocation. Revocation shall not affect any of
      Guarantor's obligations or Bank's rights with respect to transactions
      which precede Bank's receipt of such notice, regardless of whether or not
      the Indebtedness related to such transactions, before or after revocation,
      has been renewed, compromised, extended, accelerated, or otherwise changed
      as to any of its terms, including time for payment or increase or decrease
      of the rate of interest thereon, and regardless of any other act or
      omission of Bank authorized hereunder. Revocation by Guarantor shall not
      affect any obligations of any other guarantor.

            (b) In the event of the death of a Guarantor, the liability of the
      estate of the deceased Guarantor shall continue in full force and effect
      as to (i) the Indebtedness existing at the date of death, and any renewals
      or extensions thereof, and (ii) loans or advances made to or for the
      account of Borrower after the date of the death of the deceased Guarantor
      pursuant to a commitment made by Bank to Borrower prior to the date of
      such death. As to all surviving Guarantors, this Guaranty shall continue
      in full force and effect after the death of a Guarantor, not only as to
      the Indebtedness existing at that time, but also as to the Indebtedness
      thereafter incurred by Borrower to Bank.

      13.   Reinstatement of Guaranty. If this Guaranty is revoked, returned, or
canceled, and subsequently any payment or transfer of any interest in property
by Borrower to Bank is rescinded or must be returned by Bank to Borrower, this
Guaranty

                                       4

<PAGE>

shall be reinstated with respect to any such payment or transfer, regardless of
any such prior revocation, return, or cancellation.

      14.   Stay of Acceleration. In the event that acceleration of the time for
payment of any of the Indebtedness is stayed upon the insolvency, bankruptcy, or
reorganization of Borrower or otherwise, all such Indebtedness guaranteed by
Guarantor shall nonetheless be payable by Guarantor immediately upon demand by
Bank.

      15.   No Deductions. All payments by Guarantor hereunder shall be paid in
full, without setoff or counterclaim or any deduction or withholding whatsoever,
including, without limitation, for any and all present and future taxes. In the
event that Guarantor or Bank is required by law to make any such deduction or
withholding, Guarantor agrees to pay on behalf of Bank such amount directly to
the appropriate person or entity, or if the Guarantor cannot legally comply with
the foregoing, Guarantor shall pay to Bank such additional amounts as will
result in the receipt by Bank of the full amount payable hereunder. Guarantor
shall promptly provide Bank with evidence of payment of any such amount made on
Bank's behalf.

      16.   Information Relating to Borrower. Guarantor acknowledges and agrees
that it shall have the sole responsibility for, and has adequate means of,
obtaining from Borrower such information concerning Borrower's financial
condition or business operations as Guarantor may require, and that Bank has no
duty, and Guarantor is not relying on Bank, at any time to disclose to Guarantor
any information relating to the business operations or financial condition of
Borrower.

      17.   Borrower's Authorization. Where Borrower is a corporation,
partnership, or limited liability company, it is not necessary for Bank to
inquire into the powers of Borrower or of the officers, directors, partners,
members, managers, or agents acting or purporting to act on its behalf, and any
Indebtedness made or created in reliance upon the professed exercise of such
powers shall be guaranteed hereunder, subject to any limitations on Guarantor's
liability set forth herein.

      18.   Information Relating to Guarantor. Guarantor authorizes Bank to
verify or check any information given by Guarantor to Bank, check Guarantor's
credit references, verify employment, and obtain credit reports. Guarantor
acknowledges and agrees that the authorizations provided in this paragraph apply
to any individual general partner of Guarantor and to Guarantor's spouse and any
such general partner's spouse if Guarantor or such general partner is married
and lives in a community property state.

      19.   Guarantor's Covenants. Until the Indebtedness guaranteed under this
Guaranty has been paid in full and any commitments of Bank or facilities
provided by Bank with respect to such Indebtedness have been terminated and each
and every term, covenant, and condition of this Guaranty is fully performed,
Guarantor agrees to comply with the financial reporting provisions applicable to
Guarantor as set forth in Section 9.3 of the Loan Agreement.

                                       5

<PAGE>

      20.   Foreign Currency.

            (a) If any claim arising under or related to this Guaranty is
      reduced to judgment denominated in a currency (the "Judgment Currency")
      other than the currency or currencies in which the guaranteed Indebtedness
      is denominated (individually, an "Obligation Currency"), the judgment
      shall be for the equivalent in the Judgment Currency of the amount of the
      claim denominated in each Obligation Currency included in the judgment,
      determined as of the date of judgment. The equivalent of any Obligation
      Currency amount in any Judgment Currency shall be calculated at the spot
      rate for the purchase of the Obligation Currency with the Judgment
      Currency quoted by Bank in the place of Bank's choice at or about 8:00
      a.m. on the date for determination specified above. Guarantor shall
      indemnify Bank and hold Bank harmless from and against all loss or damage
      resulting from any change in exchange rates between the date any claim is
      reduced to judgment and the date of payment thereof by Guarantor.

            (b) The obligations hereunder shall not be affected by any acts of
      any governmental authority affecting Borrower including, without
      limitation, any restrictions on the conversion of currency or repatriation
      or control of funds or any total or partial expropriation of Borrower's
      property, or by economic, political, regulatory, or other events in the
      countries where Borrower is located.

            (c) If (i) a maximum amount for which Guarantor is liable under this
      Guaranty with respect to the principal amount of the Indebtedness is
      expressed in U.S. Dollars in Paragraph 1 of this Guaranty and (ii) an
      increase occurs in the market value of any Obligation Currencies as
      compared to the U.S. Dollars before any payment by Guarantor of its
      obligations under this Guaranty, then such maximum amount for which
      Guarantor is liable shall be increased by an amount of U.S. Dollars
      sufficient to purchase on the day of such payment, whether before or after
      settlement or judgment, the amount of such Obligation Currencies owed to
      Bank. Such increased maximum amount shall be calculated using the exchange
      rate quotes described in sub paragraph (a) above.

      21.   Taxes. Guarantor represents and warrants that it is organized and
resident in the United States of America. If Guarantor must make a payment under
this Guaranty, Guarantor represents and warrants that it will make the payment
from one of its U.S. resident offices to a U.S. office of Bank so that no
withholding tax is imposed on the payment. If notwithstanding the foregoing,
Guarantor makes a payment under this Guaranty to which withholding tax applies,
then Guarantor shall pay any taxes (other than taxes on net income (a) imposed
by the country or any subdivision of the country in which Bank's principal
office or actual lending office is located and (b) measured by the United States
taxable income Bank would have received if all payments under or in respect of
this Guaranty were exempt from taxes levied by Guarantor's country) that are at
any time imposed on any such payments under or in respect of this Guaranty
including, but not limited to, payments made pursuant to this paragraph.
Further, if such withholding tax is applicable, Guarantor shall also pay to
Bank, on demand, all additional amounts that Bank

                                       6

<PAGE>

specifies as necessary to preserve the after-tax yield Bank would have received
if such taxes had not been imposed.

      22.   Successors and Assigns. This Guaranty (a) binds Guarantor and
Guarantor's executors, administrators, successors, and assigns, provided that
Guarantor may not assign its rights or obligations under this Guaranty without
the prior written consent of Bank, and (b) inures to the benefit of Bank and
Bank's indorsees, successors, and assigns. Bank may, without notice to Guarantor
and without affecting Guarantor's obligations hereunder, sell, assign, grant
participations in, or otherwise transfer to any other person, firm, or
corporation the Indebtedness and this Guaranty, in whole or in part. Guarantor
agrees that Bank may disclose to any assignee or purchaser, or any prospective
assignee or purchaser, of all or part of the Indebtedness any and all
information in Bank's possession concerning Guarantor, this Guaranty, and any
security for this Guaranty.

      23.   Costs and Expenses. Guarantor agrees to pay all reasonable
attorneys' fees, including allocated costs of Bank's in-house counsel, and all
other costs and expenses which may be incurred by Bank (a) in the enforcement of
this Guaranty or (b) in the preservation, protection, or enforcement of any
rights of Bank in any case commenced by or against Guarantor under the
Bankruptcy Code (Title 11, United States Code) or any similar or successor
statute.

      24.   Governing Law and Jurisdiction. This Guaranty shall be governed by
and construed under the laws of the State of Texas. Guarantor irrevocably (a)
submits to the non-exclusive jurisdiction of any United States Federal or State
court sitting in the State of Texas in any action or proceeding arising out of
or relating to this Guaranty and (b) waives to the fullest extent permitted by
law any defense asserting an inconvenient forum in connection therewith. Service
of process by Bank in connection with such action or proceeding shall be binding
on Guarantor if sent to Guarantor by registered or certified mail at its address
specified below.

      25.   Judicial Proceedings; Waivers. THE GUARANTOR AND THE BANK
ACKNOWLEDGE AND AGREE THAT (a) ANY SUIT, ACTION OR PROCEEDING, WHETHER CLAIM OR
COUNTERCLAIM, BROUGHT OR INSTITUTED BY THE GUARANTOR OR THE BANK OR ANY
SUCCESSOR OR ASSIGN OF THE GUARANTOR OR THE BANK, ON OR WITH RESPECT TO THIS
GUARANTY, OR THE DEALINGS OF THE PARTIES WITH RESPECT HERETO OR THERETO SHALL BE
TRIED ONLY BY A COURT AND NOT BY A JURY AND EACH PARTY WAIVES THE RIGHT TO TRIAL
BY JURY; (b) EACH WAIVES ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER, IN ANY SUCH
SUIT, ACTION OR PROCEEDING, ANY SPECIAL, EXEMPLARY, PUNITIVE OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES OTHER THAN, OR IN ADDITION TO, ACTUAL DAMAGES; AND (c)
THIS SECTION IS A SPECIFIC AND MATERIAL ASPECT OF THIS GUARANTY, AND THE BANK
WOULD NOT EXTEND CREDIT IF THE WAIVERS SET FORTH IN THIS SECTION WERE NOT A PART
OF THIS GUARANTY!

      Executed this 1st day of June, 2000.

                                       7

<PAGE>

                                     /s/ Jerry West
                                     --------------------------------
                                     Jerry West

                                     Address:

                                     ________________________________

                                       8

<PAGE>

STATE OF TEXAS

COUNTY OF DALLAS

      The foregoing was executed and acknowledged before me this 1st day of
June, 2000 by Jerry West. He/She is personally known to me or produced
__________________________as identification and did/did not take an oath.

                                           /s/ Rebecca Ann West
                                           -----------------------------------
[SEAL]                                     Print Name: Rebecca Ann West
                                           MY Commission Expires: 12/12/00
                                           Commission No.: 00757678-6
                                           Notary Public, State of Texas

                                           [NOTARY SEAL]

                                       9

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