Document:

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                                  Exhibit 10.18

                              CONSULTING AGREEMENT

      THIS CONSULTING AGREEMENT is made and entered into this 11th day of
October, 2004, effective May 1, 2004 (the "Effective Date"), by and between West
Bancorporation, Inc., an Iowa corporation (hereinafter referred to as
"Corporation") and David L. Miller (hereinafter referred to as "Consultant").
Corporation and Consultant hereby agree as follows:

      1. Services. Corporation hereby retains Consultant to provide consulting
services on mutually agreeable matters throughout the term of this Agreement,
and Consultant agrees to provide such services as reasonably requested by
Corporation. Such consulting services shall be performed in such manner, and at
such times and places as may be agreed upon by the parties. The time spent on
such services shall not exceed 480 hours per year.

      2. Term. The terms reflected in this Agreement became effective May 1,
2004, and shall continue until the death of Consultant, unless earlier
terminated in accordance with the provisions of paragraph 9.

      3. Compensation. As compensation for the consulting services to be
performed hereunder, Corporation shall pay to Consultant the sum of $110,479.83
per annum, payable in equal monthly installments on the first day of each month,
for the period from January 1, 2004 through December 31, 2004. The compensation
shall be increased for subsequent years this Agreement remains in effect, in an
amount equal to the product of the previous year's compensation multiplied by
the increase in the Consumer Price Index for the previous year. All increases
shall be made retroactive to January 1 of each subsequent year of this
Agreement. Due to Consultant's status as an independent contractor, Consultant
shall be responsible for his own taxes, social security, and Medicare, and no
sums shall be withheld from Consultant's compensation for such purposes.
Corporation shall annually issue an IRS Form 1099 to Consultant to reflect the
amounts paid hereunder.

      4. Health Insurance.

            (a) Corporation shall provide and pay 75% of the premium for family
      health insurance coverage for Consultant and his spouse consistent with
      the health care benefits in effect on the Effective Date of this
      Agreement. It is acknowledged that as of the Effective Date, Corporation
      pays 75% of the premium for a Medicare B/Supplemental Drug policy, and
      that the parties intend that coverage at that level shall be maintained
      throughout the term of this Agreement and beyond its term in accordance
      with subparagraph (b) below. In the event identical group coverage becomes
      unavailable, it is understood that Consultant (or his surviving spouse)
      will pay no more than 25% of the premium for any comparable benefit.

            (b) The health insurance benefit provided to Consultant and his
      spouse hereunder shall survive any termination of this Agreement by the
      Corporation and, with respect to the health benefit applicable to
      consultant's spouse, shall survive the termination of this Agreement due
      to the death of Consultant. Corporation's obligation to provide health
      insurance benefits shall cease if this Agreement is terminated by the
      Consultant for any reason other than his death.

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      5. Other Benefits. During the term of this Agreement, Consultant shall be
entitled to the following additional benefits:

            (a) Consultant shall be provided full membership in Glen Oaks
      Country Club, at the rate applicable to Consultant's membership category.

            (b) Consultant shall be provided a new company car of Consultant's
      selection at a cost not to exceed $30,000.00 every two (2) years. Any
      costs incurred at Consultant's discretion in excess of $30,000.00 shall be
      paid by Consultant. At the time a new car is purchased, Consultant shall
      have the option to purchase the company car previously provided at the
      NADA trade-in value for a similar vehicle.

            (c) Consultant shall be provided trust services by West Bank at the
      cost applicable to such services as of November 2000.

            (d) Corporation shall reimburse Consultant for legal and accounting
      fees incurred by Consultant to a maximum of $10,000.00 annually.

      6. Expenses. Corporation shall reimburse Consultant for any incidental
out-of-pocket expenses reasonably incurred by Consultant in providing the
services contemplated by this Agreement, upon Consultant's submission of a claim
therefor in a form satisfactory to Corporation. Reasonable travel expenses shall
be reimbursable to the extent travel is requested by the Corporation and agreed
to by the Consultant.

      7. Office Space and Services.  Corporation shall provide office space and
secretarial services at Corporation's West Des Moines location.

      8. Independent Contractor. In the provision of services hereunder,
Consultant's status shall be that of independent contractor. Consultant shall
not be deemed an employee or agent of Corporation or any of its subsidiaries,
and shall be expected to exercise independent control and discretion in the
time, place and manner the consulting services described in paragraph 1 are
performed. Except for the benefits described in this Agreement Consultant shall
not be entitled to any benefits accorded an employee of the Corporation.

      9. Termination. Any termination under this paragraph 9 shall be
accomplished by written notice by the terminating party.

            (a) By the Corporation. This Agreement may be terminated by the
            Corporation at its option in the event of (i) the Consultant's
            material breach of the terms of this Agreement; or (ii) the
            Consultant's conviction of a felony punishable by imprisonment for a
            term exceeding one year.

            (b) By the Consultant. This Agreement may be terminated by the
            Consultant in the event of the Corporation's material breach of the
            terms of this Agreement.

      10. Miscellaneous. This Agreement has been executed and shall be construed
in accordance with the laws of the State of Iowa. This Agreement supersedes all
prior agreements and understandings between the parties hereto, and no
amendments or variations of the terms of this Agreement shall be valid unless
made in writing and signed by Consultant and a duly authorized representative of
the Corporation. A waiver of any of the terms or conditions hereof shall not be
construed as a general waiver by Corporation and Corporation shall be free to
reinstate any terms or conditions waived subsequent to the effective date of
this Agreement, with notice to Consultant.

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      11. Notice. Notices required to be given under this Agreement shall be
deemed to have been duly given and received upon delivery, or upon mailing if
mailed by certified mail, return receipt requested. In either case, the notice
shall be addressed or delivered to the parties as follows:

            Corporation: West Bancorporation, Inc.
                         ATTN: President
                         1601 22nd St.
                         West Des Moines, IA 50266

            Consultant:  David L. Miller
                         1360 Glen Oaks Drive
                         West Des Moines, IA 50266

      IN WITNESS WHEREOF, the parties have executed this Agreement on the day
and year first above written.

WEST BANCORPORATION, INC.

By: /s/ Thomas Stanberry                     /s/ David L. Miller
    -------------------------------          ----------------------------------
    Thomas Stanberry,                        David L. Miller
    Chairman, President and CEO

      CORPORATION                            CONSULTANT<PAGE>

                                                                 EXHIBIT 10.23.1

                           SECOND AMENDMENT TO LEASE

        This Second Amendment to Lease (this "AMENDMENT"), dated as of April
6th, 2004, by and between TRINET ESSENTIAL FACILITIES XXVI, INC., a Delaware
corporation ("LANDLORD"), successor-in-interest to South Bay/Edenvale
Associates, a California general partnership, and WESTERN DIGITAL TECHNOLOGIES,
INC., formerly known as Western Digital Corporation, a Delaware corporation
("TENANT"), amends and forms a part of the Lease, dated as of June 14, 1996, by
and between Landlord and Tenant, as amended by the First Amendment to Lease
dated as of August 7, 1996 (collectively, the "LEASE").

                                    RECITALS

        A. Capitalized terms used herein and not defined herein have the
meanings specified in the Lease.

        B. As generally described in the February 24, 2004 letter from Tenant
to Landlord, a copy of which is attached hereto as Exhibit A, Tenant desires to
install, operate, repair and maintain certain underground communications
cabling and related improvements to connect the Premises and certain premises
located adjacent to the Parcel (the "CONNECTION PROJECT"), which adjacent
premises are owned by The Realty Associates Fund IV, LP, a Delaware limited
partnership ("TA ASSOCIATES"), and are leased to LSI Logic Corporation, a
Delaware corporation ("LSI"), pursuant to that certain Lease, dated as of
October 25, 2000, as the same may have been amended from time to time, and a
portion of which adjacent premises are subleased by LSI to Tenant pursuant to
that certain Sublease, dated as of December 19, 2003, as the same may have been
amended from time to time.

        C. Landlord and Tenant desire to amend the Lease to provide for
Landlord's consent to the Connection Project subject to the conditions set
forth herein, and in certain other respects, all as provided below.

                                   AGREEMENTS

        Now, therefore, for good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, Landlord and Tenant hereby agree
as follows:

        1. Landlord's Consent to the Connection Project. Landlord hereby
consents to Tenant's undertaking of the Connection Project, subject to the
following terms and conditions:

        (a) Tenant shall have executed a License Agreement in the form of
Exhibit B attached hereto (the "LICENSE").

        (b) As provided in the License Agreement, Tenant shall have submitted,
and Landlord shall have approved in its reasonable discretion, detailed plans,
specifications and precise locations for each and every component of the
installation of the Connection Project.

        (c) Tenant shall install, operate, maintain and repair the Connection
Project as its sole cost and expense, in a good workmanlike manner and in
accordance with the terms and conditions of the Lease, the License, any other
reasonable requirements of Landlord and all applicable laws, codes, rules,
permits and regulations.

        (d) All equipment, improvements, facilities and other components of the
Connection Project located on or within the Parcel and belonging to Tenant
shall become Landlord's property upon the
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expiration or sooner termination of this Lease; provided, however, that, if
requested in writing by Landlord, Tenant shall remove, or cause to be removed,
any or all components of the Connection Project located on or within the Parcel
upon the expiration or sooner termination of this Lease, and shall restore the
Parcel to the condition it was in immediately prior to the commencement of the
Connection Project.

        (e) Except to the extent of Landlord's gross negligence or willful
misconduct, Tenant shall hold harmless, indemnify, protect and defend Landlord
and its affiliates, employees, agents and representatives against any claim,
demand, action, cause of action, damage, loss, liability, cost and expense
(including reasonable attorneys' fees) that arises out of or results from the
License, the use or misuse of the rights granted thereunder or the installation,
operation, maintenance, repair and/or removal of the Connection Project,
including, without limitation, any claims made by TA Associates and/or LSI. This
indemnification obligations shall survive the expiration or sooner termination
of the Lease.

        (g) Promptly upon receipt of an invoice from Landlord, Tenant shall pay
all of Landlord's reasonable and actual costs and expenses (including, without
limitation, any consulting and legal fees) incurred in connection with reviewing
and discussing the Connection Project and negotiating and documenting the
License and this Amendment.

        2. No First Opportunity to Lease. Paragraph 40 of the Lease is hereby
deleted in its entirety and is of no further force or effect.

        3. Conflicts; No Other Amendment. In the event of a conflict between the
provisions of this Amendment and the provisions of the Lease, the provisions of
this Amendment shall control. Except as set forth in this Amendment, the
provisions of the Lease remain in full force and effect.

        4. Entire Agreement. The Lease, as modified by this Amendment,
constitutes the entire agreement between the parties hereto pertaining to the
subject matter hereof and may be further modified only by a writing signed by
the parties hereto.

        5. Facsimile; Counterparts. This Amendment may be signed in multiple
counterparts which, when signed by all parties, shall constitute a binding
agreement. Landlord and Tenant agree that the delivery of any executed copy of
this Amendment by facsimile shall be legal and binding and shall have the same
full force and effect as if an original executed copy of this Amendment had
been delivered.

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        In Witness Whereof, the parties have caused this Amendment to be duly
executed as of the date first above set forth.

                                  TRINET ESSENTIAL FACILITIES XXVI, INC.,
                                  a Delaware corporation, Landlord

                                  By: /s/ [illegible]
                                      ---------------------------------------
                                  Its: Vice President

                                  WESTERN DIGITAL TECHNOLOGIES, INC.,
                                  formerly known as Western Digital Corporation,
                                  a Delaware corporation, Tenant

                                  By: /s/ Cindy M. Campos
                                      ---------------------------------------
                                      Cindy M. Campos 4/1/04

                                  Its: Real Estate Specialist

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