Document:

<PAGE>

                                                                     Exhibit 4.3

                             CERTIFICATE OF TRUST

                                      OF

                 COLORADO BUSINESS BANKSHARES CAPITAL TRUST I

        THIS CERTIFICATE OF TRUST OF Colorado Business Bankshares Capital Trust
I (the "Trust"), dated May 23, 2000, is being duly executed and filed by the
undersigned, as trustees, to form a business trust under the Delaware Business
Trust Act (12 DEL. C. Section 3801 ET SEQ.)(the "ACT").

        1.  NAME. The name of the business trust formed hereby is Colorado
Business Bankshares Capital Trust I.

        2.  DELAWARE TRUSTEE. The name and business address of the trustee of
the Trust in the State of Delaware is First Union Trust Company, National
Association, One Rodney Square, 920 King Street, Wilmington, Delaware 19801,
Attention: Corporate Trust Administration.

        3.  EFFECTIVE DATE. This Certificate of Trust will be effective upon
filing.

        IN WITNESS WHEREOF, the undersigned have executed this Certficate of
Trust in accordance with Section 3811(a)(1) of the Act.

                   FIRST UNION TRUST COMPANY, NATIONAL
                    ASSOCIATION, as Delaware trustee

                   By:  /s/ Edward L. Truitt, Jr.
                      -----------------------------------------
                      Name:   Edward L. Truitt, Jr.
                      Title:  Vice President

                   /s/ Richard J. Dalton
                   --------------------------------------------
                   Richard J. Dalton, As Administrative Trustee

                   /s/ Jonathon C. Lorenz
                   --------------------------------------------
                   Jonathon C. Lorenz, As Administrative Trustee

                   /s/ Lyne B. Andrich
                   --------------------------------------------
                   Lyne B. Andrich, As Administrative Trustee<PAGE>

                                                                    Exhibit 4.4

                                TRUST AGREEMENT
                                      OF
                 COLORADO BUSINESS BANKSHARES CAPITAL TRUST I

        THIS TRUST AGREEMENT is made as of May 22, 2000 (this "Trust
Agreement"), by and among Colorado Business Bankshares, Inc., a Colorado
corporation, as Depositor (the "Depositor"), First Union Trust Company, National
Association, a national banking association with its principal place of business
in the State of Delaware, as trustee (the "Delaware Trustee"), and Jonathan C.
Lorenz, Richard J. Dalton, and Lynn B. Andrich, as trustees (the "Administrative
Trustees"; and together with the Delaware Trustee, the "Trustees"). The
Depositor and the Trustees hereby agree as follows:

        1.   The trust created hereby shall be known as "Colorado Business
Bankshares Capital Trust I" (the "Trust"), in which name the Trustees or the
Depositor, to the extent provided herein, may conduct the business of the Trust,
make and execute contracts, and sue and be sued.

        2.   The Depositor hereby assigns, transfers, conveys and sets over to
the Trustees the sum of $10. The Trustees hereby acknowledge receipt of such
amount in trust from the Depositor, which amount shall constitute the initial
trust estate. The Trustees hereby declare that they will hold the trust estate
in trust for the Depositor. It is the intention of the parties hereto that the
Trust created hereby constitute a business trust under Chapter 38 of Title 12 of
the Delaware Code, 12 Del. C. (S) 3801, et seq. (the "Business Trust Act"), and
                      -------           -- ---
that this document constitute the governing instrument of the Trust. The
Trustees are hereby authorized and directed to execute and file a certificate of
trust with the Delaware Secretary of State in such form as the Trustee may
approve.

        3.   The Depositor and the Trustees will enter into an amended and
restated Trust Agreement satisfactory to each such party, to provide for the
contemplated operation of the Trust created hereby and the issuance of the
Capital Securities and Common Securities referred to therein. Prior to the
execution and delivery of such amended and restated Trust Agreement, the
Trustees shall not have any duties or obligations hereunder or with respect of
the trust estate, except as otherwise required by applicable law or as may be
necessary to obtain prior to such execution and delivery any licenses, consents
or approvals required by applicable law or otherwise. Notwithstanding the
foregoing, the Trustees may take all actions deemed proper as are necessary to
effect the transactions contemplated herein.

        4.   This Trust Agreement may be executed in one or more counterparts.

        5.   The number of Trustees of the Trust initially shall be four and
thereafter the number of trustees of the Trust shall be such number as shall be
fixed from time to time by a written instrument signed by the Depositor which
may increase or decrease the number of Trustees of the Trust; provided, however,
that to the extent required by the Business Trust Act, one trustee of the Trust
shall either be a natural person who is a resident of the State of Delaware or,
if not a natural person, an entity which has its principal place of business in
the State of
<PAGE>

Delaware. Subject to the foregoing, the Depositor is entitled to appoint or
remove without cause any trustee of the Trust at any time. Any trustee of the
Trust may resign upon thirty days' prior notice to the Depositor.

     6.  This Trust Agreement shall be governed by, and construed in accordance
with, the laws of the State of Delaware (without regard to conflict of laws
principles).

                           [SIGNATURE PAGE FOLLOWS]

                                     - 2 -
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed as of the day and year first above written.

                                COLORADO BUSINESS BANKSHARES, INC.,
                                as Depositor

                                By:  ___________________________________________
                                     Name:
                                     Title:

                                FIRST UNION TRUST COMPANY, NATIONAL
                                ASSOCIATION, as Delaware Trustee

                                By:  /s/ Edward Truitt
                                     -------------------------------------------
                                     Name:  Edward L. Truitt, Jr.
                                     Title: Vice President

                                ------------------------------------------------
                                Jonathan C. Lorenz, as Administrative Trustee

                                ------------------------------------------------
                                Richard J. Dalton, as Administrative Trustee

                                ------------------------------------------------
                                Lynn B. Andrich, as Administrative Trustee

                                     - 3 -

<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed as of the day and year first above written.

                                COLORADO BUSINESS BANKSHARES, INC.,
                                as Depositor

                                By:  /s/ Richard J. Dalton
                                     -------------------------------------------
                                     Name:  Richard J. Dalton
                                     Title: Executive Vice President

                                FIRST UNION TRUST COMPANY, NATIONAL
                                ASSOCIATION, as Delaware Trustee

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

                                /s/ Jonathan C. Lorenz
                                ------------------------------------------------
                                Jonathan C. Lorenz, as Administrative Trustee

                                /s/ Richard J. Dalton
                                ------------------------------------------------
                                Richard J. Dalton, as Administrative Trustee

                                /s/ Lynn B. Andrich
                                ------------------------------------------------
                                Lynn B. Andrich, as Administrative Trustee

                                     - 4 -<PAGE>

                                                                     EXHIBIT 4.5

                 COLORADO BUSINESS BANKSHARES CAPITAL TRUST I

                     AMENDED AND RESTATED TRUST AGREEMENT

                                     among

               COLORADO BUSINESS BANKSHARES, INC., as Depositor,

     FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION, as Property Trustee,

     FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION, as Delaware Trustee,

                                      and

                   THE ADMINISTRATIVE TRUSTEES NAMED HEREIN

                         Dated as of____________, 2000

<PAGE>

                               TABLE OF CONTENTS

CROSS-REFERENCE TABLE........................................................iv

AMENDED AND RESTATED TRUST AGREEMENT..........................................1

RECITALS......................................................................1

ARTICLE I  DEFINED TERMS......................................................2
  SECTION 101.   DEFINITIONS..................................................2

ARTICLE II  ESTABLISHMENT OF THE TRUST.......................................10
  SECTION 201.   NAME........................................................10
  SECTION 202.   OFFICE OF THE DELAWARE TRUSTEE; PRINCIPAL
                 PLACE OF BUSINESS...........................................10
  SECTION 203.   INITIAL CONTRIBUTION OF TRUST PROPERTY;
                 ORGANIZATIONAL EXPENSES.....................................10
  SECTION 204.   ISSUANCE OF THE CAPITAL SECURITIES..........................10
  SECTION 205.   ISSUANCE OF THE COMMON SECURITIES;
                 SUBSCRIPTION AND PURCHASE OF DEBENTURES.....................11
  SECTION 206.   DECLARATION OF TRUST........................................11
  SECTION 207.   AUTHORIZATION TO ENTER INTO CERTAIN
                 TRANSACTIONS................................................11
  SECTION 208.   ASSETS OF TRUST.............................................15
  SECTION 209.   TITLE TO TRUST PROPERTY.....................................15

ARTICLE III  PAYMENT ACCOUNT.................................................15
  SECTION 301.   PAYMENT ACCOUNT.............................................15

ARTICLE IV  DISTRIBUTIONS; REDEMPTION........................................15
  SECTION 401.   DISTRIBUTIONS...............................................15
  SECTION 402.   REDEMPTION..................................................16
  SECTION 403.   SUBORDINATION OF COMMON SECURITIES..........................18
  SECTION 404.   PAYMENT PROCEDURES..........................................19
  SECTION 405.   TAX RETURNS AND REPORTS.....................................19
  SECTION 406.   PAYMENT OF TAXES, DUTIES, ETC. OF THE TRUST.................19
  SECTION 407.   PAYMENTS UNDER INDENTURE....................................19

ARTICLE V  TRUST SECURITIES CERTIFICATES.....................................20
  SECTION 501.   INITIAL OWNERSHIP...........................................20
  SECTION 502.   THE TRUST SECURITIES CERTIFICATES...........................20
  SECTION 503.   EXECUTION, AUTHENTICATION AND DELIVERY OF TRUST
                 SECURITIES CERTIFICATES.....................................20
  SECTION 503A.  GLOBAL CAPITAL SECURITY.....................................21

                                       i
<PAGE>

  SECTION 504.   REGISTRATION OF TRANSFER AND EXCHANGE OF
                 CAPITAL SECURITIES CERTIFICATES.............................22
  SECTION 505.   MUTILATED, DESTROYED, LOST OR STOLEN TRUST
                 SECURITIES CERTIFICATES.....................................23
  SECTION 506.   PERSONS DEEMED SECURITYHOLDERS..............................23
  SECTION 507.   ACCESS TO LIST OF SECURITYHOLDERS' NAMESAND ADDRESSES.......24
  SECTION 508.   MAINTENANCE OF OFFICE OR AGENCY.............................24
  SECTION 509.   APPOINTMENT OF PAYING AGENT.................................24
  SECTION 510.   OWNERSHIP OF COMMON SECURITIES BY DEPOSITOR.................25
  SECTION 511.   TRUST SECURITIES CERTIFICATES...............................25
  SECTION 512.   NOTICES TO CLEARING AGENCY..................................26
  SECTION 513.   RIGHTS OF SECURITYHOLDERS...................................26

ARTICLE VI  ACTS OF SECURITYHOLDERS; MEETINGS; VOTING........................27
  SECTION 601.   LIMITATIONS ON VOTING RIGHTS................................27
  SECTION 602.   NOTICE OF MEETINGS..........................................28
  SECTION 603.   MEETINGS OF CAPITAL SECURITYHOLDERS.........................28
  SECTION 604.   VOTING RIGHTS...............................................28
  SECTION 605.   PROXIES, ETC. ..............................................28
  SECTION 606.   SECURITYHOLDER ACTION BY WRITTEN CONSENT....................29
  SECTION 607.   RECORD DATE FOR VOTING AND OTHER PURPOSES...................29
  SECTION 608.   ACTS OF SECURITYHOLDERS.....................................29
  SECTION 609.   INSPECTION OF RECORDS.......................................30

ARTICLE VII  REPRESENTATIONS AND WARRANTIES..................................30
  SECTION 701.   REPRESENTATIONS AND WARRANTIES OF THE BANK AND
                 THE PROPERTY TRUSTEE........................................30
  SECTION 702.   REPRESENTATIONS AND WARRANTIES OF THE DELAWARE
                 BANK AND THE DELAWARE TRUSTEE...............................31
  SECTION 703.   REPRESENTATIONS AND WARRANTIES OF DEPOSITOR.................33

ARTICLE VIII  TRUSTEES.......................................................33
  SECTION 801.   CERTAIN DUTIES AND RESPONSIBILITIES.........................33
  SECTION 802.   CERTAIN NOTICES.............................................34
  SECTION 803.   CERTAIN RIGHTS OF PROPERTY TRUSTEE..........................35
  SECTION 804.   NOT RESPONSIBLE FOR RECITALS OR ISSUANCE
                 OF SECURITIES...............................................37
  SECTION 805.   MAY HOLD SECURITIES.........................................37
  SECTION 806.   COMPENSATION; INDEMNITY; FEES...............................37
  SECTION 807.   CORPORATE PROPERTY TRUSTEE REQUIRED; ELIGIBILITY
                 OF TRUSTEES.................................................38
  SECTION 808.   CONFLICTING INTERESTS.......................................38
  SECTION 809.   CO-TRUSTEES AND SEPARATE TRUSTEE............................38
  SECTION 810.   RESIGNATION AND REMOVAL; APPOINTMENT
                 OF SUCCESSOR................................................40

                                      ii
<PAGE>

  SECTION 811.    ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.....................41
  SECTION 812.    MERGER CONVERSION, CONSOLIDATION OR SUCCESSION
                  TO BUSINESS................................................42
  SECTION 813.    PREFERENTIAL COLLECTION OF CLAIMS AGAINST
                  DEPOSITOR OR TRUST.........................................42
  SECTION 814.    REPORTS BY PROPERTY TRUSTEE................................42
  SECTION 815.    REPORTS TO THE PROPERTY TRUSTEE............................43
  SECTION 816.    EVIDENCE OF COMPLIANCE WITH CONDITIONS
                  PRECEDENT..................................................43
  SECTION 817.    NUMBER OF TRUSTEES.........................................43
  SECTION 818.    DELEGATION OF POWER........................................43
  SECTION 819.    VOTING.....................................................44

ARTICLE IX  TERMINATION, LIQUIDATION AND MERGER..............................44
  SECTION 901.    TERMINATION UPON EXPIRATION DATE...........................44
  SECTION 902.    EARLY TERMINATION..........................................44
  SECTION 903.    TERMINATION................................................44
  SECTION 904.    LIQUIDATION................................................45
  SECTION 905.    MERGERS, CONSOLIDATIONS, AMALGAMATIONS OR
                  REPLACEMENTS OF THE TRUST..................................46

ARTICLE X  MISCELLANEOUS PROVISIONS..........................................47
  SECTION 1001.   LIMITATION OF RIGHTS OF SECURITYHOLDERS....................47
  SECTION 1002.   AMENDMENT..................................................47
  SECTION 1003.   SEPARABILITY...............................................48
  SECTION 1004.   GOVERNING LAW..............................................49
  SECTION 1005.   PAYMENTS DUE ON NON-BUSINESS DAY...........................49
  SECTION 1006.   SUCCESSORS.................................................49
  SECTION 1007.   HEADINGS...................................................49
  SECTION 1008.   REPORTS, NOTICES AND DEMANDS...............................49
  SECTION 1009.   AGREEMENT NOT TO PETITION..................................50
  SECTION 1010.   TRUST INDENTURE ACT; CONFLICT WITH TRUST INDENTURE
                  ACT........................................................50
  SECTION 1011.   ACCEPTANCE OF TERMS OF TRUST AGREEMENT,
                  GUARANTEE AND INDENTURE....................................51

EXHIBITS

Exhibit A   Certificate of Trust
Exhibit B   Form of Common Securities Certificate
Exhibit C   Form of Expense Agreement
Exhibit D   Form of Capital Securities Certificate
Exhibit E   Form of Capital Securities Certificate of Authentication

                                      iii
<PAGE>

                             CROSS-REFERENCE TABLE

         SECTION OF TRUST INDENTURE ACT
              OF 1939, AS AMENDED               SECTION OF INDENTURE
         ------------------------------         --------------------

                  310(a)(1)                             807
                  310(a)(2)                             807
                  310(a)(3)                             807
                  310(a)(4)                          207(a)(ii)
                  310(b)                                808
                  311(a)                                813
                  311(b)                                813
                  312(a)                                507
                  312(b)                                507
                  312(c)                                507
                  313(a)                               814(a)
                  313(a)(4)                            814(b)
                  313(b)                               814(b)
                  313(c)                               1008
                  313(d)                               814(c)
                  314(a)                                815
                  314(b)                           Not Applicable
                  314(c)(1)                             816
                  314(c)(2)                             816
                  314(c)(3)                        Not Applicable
                  314(d)                           Not Applicable
                  314(e)                             101, 816
                  315(a)                           801(a), 803(a)
                  315(b)                             802, 1008
                  315(c)                               801(a)
                  315(d)                             801, 803
                  316(a)(2)                        Not Applicable
                  316(b)                           Not Applicable
                  316(c)                                607
                  317                                207(a)(ii)
                  318(a)                               1010

Note:
This Cross-Reference Table does not constitute part of this Agreement and shall
not affect the interpretation of any of its terms or provisions.

                                      iv
<PAGE>

                     AMENDED AND RESTATED TRUST AGREEMENT

     AMENDED AND RESTATED TRUST AGREEMENT, dated as of____________, 2000, among
(i) COLORADO BUSINESS BANKSHARES, INC., a Colorado corporation (including any
successors or assigns, the "Depositor"), (ii) FIRST UNION TRUST COMPANY,
NATIONAL ASSOCIATION, a national banking association with its principal place of
business in the State of Delaware, as property trustee (the "Property Trustee"
and, in its separate corporate capacity and not in its capacity as Property
Trustee, the "Bank"), (iii) FIRST UNION TRUST COMPANY, NATIONAL ASSOCIATION, a
national banking association with its principal place of business in the State
of Delaware, as Delaware trustee (the "Delaware Trustee," and, in its separate
corporate capacity and not in its capacity as Delaware Trustee, the "Delaware
Bank") (iv)____________, an individual,____________, an individual, and
____________, an individual, each of whose address is c/o Company (each an
"Administrative Trustee" and collectively the "Administrative Trustees") (the
Property Trustee, the Delaware Trustee and the Administrative Trustees referred
to collectively as the "Trustees"), and (v) the several Holders (as hereinafter
defined).

                                   RECITALS

     WHEREAS, the Depositor, the Delaware Trustee, and____________, ____________
and____________, each as an Administrative Trustee, have heretofore duly
declared and established a business trust pursuant to the Delaware Business
Trust Act by the entering into of that certain Trust Agreement, dated as
of____________, 2000 (the "Original Trust Agreement"), and by the execution and
filing by the Delaware Trustee and the Administrative Trustees with the
Secretary of State of the State of Delaware of the Certificate of Trust, filed
on____________, 2000, the form of which is attached as Exhibit A; and

     WHEREAS, the Depositor, the Delaware Trustee, the Property Trustee and the
Administrative Trustees desire to amend and restate the Original Trust Agreement
in its entirety as set forth herein to provide for, among other things, (i) the
issuance of the Common Securities (as defined herein) by the Trust (as defined
herein) to the Depositor; (ii) the issuance and sale of the Capital Securities
(as defined herein) by the Trust pursuant to the Underwriting Agreement (as
defined herein); (iii) the acquisition by the Trust from the Depositor of all of
the right, title and interest in the Debentures (as defined herein); and (iv)
the appointment of the Trustees;

     NOW THEREFORE, in consideration of the agreements and obligations set forth
herein and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, each party, for the benefit of the
other parties and for the benefit of the Securityholders (as defined herein),
hereby amends and restates the Original Trust Agreement in its entirety and
agrees as follows:

<PAGE>

                                   ARTICLE I

                                 DEFINED TERMS

SECTION 101.  DEFINITIONS.

     For all purposes of this Trust Agreement, except as otherwise expressly
provided or unless the context otherwise requires:

     (a) the terms defined in this Article I have the meanings assigned to them
in this Article I and include the plural as well as the singular;

     (b) all other terms used herein that are defined in the Trust Indenture
Act, either directly or by reference therein, have the meanings assigned to them
therein;

     (c) unless the context otherwise requires, any reference to an"Article" or
a "Section" refers to an Article or a Section, as the case may be, of this Trust
Agreement; and

     (d) the words "herein", "hereof" and "hereunder" and other words of similar
import refer to this Trust Agreement as a whole and not to any particular
Article, Section or other subdivision.

     "Act" has the meaning specified in Section 608.

     "Additional Amount" means, with respect to Trust Securities of a given
Liquidation Amount and/or a given period, the amount of additional interest
accrued on interest in arrears and paid by the Depositor on a Like Amount of
Debentures for such period.

     "Additional Interest" has the meaning specified in Section 1.1 of the
Indenture.

     "Administrative Trustee" means each of____________,____________
and____________, solely in his or her capacity as Administrative Trustee of the
Trust formed and continued hereunder and not in his or her individual capacity,
or such Administrative Trustee's successor in interest in such capacity, or any
successor trustee appointed as herein provided.

     "Affiliate" means, with respect to a specified Person, (a) any Person
directly or indirectly owning, controlling or holding with power to vote 10% or
more of the outstanding voting securities or other ownership interests of the
specified Person, any Person 10% or more of whose outstanding voting securities
or other ownership interests are directly or indirectly owned, controlled or
held with power to vote by the specified Person; (b) any Person directly or
indirectly controlling, controlled by, or under common control with the
specified Person; (c) a partnership in which the specified Person is a general
partner; (d) any officer or director of the specified Person; and (e) if the
specified Person is an individual, any entity of which the specified Person is
an officer, director or general partner.

     "Authenticating Agent" means an authenticating agent with respect to the
Capital Securities appointed by the Property Trustee pursuant to Section 503.

                                       2
<PAGE>

     "Bank" has the meaning specified in the Preamble to this Trust Agreement.

     "Bankruptcy Event" means, with respect to any Person:

     (a) the entry of a decree or order by a court having jurisdiction in the
premises adjudging such Person a bankrupt or insolvent, or approving as properly
filed a petition seeking liquidation or reorganization of or in respect of such
Person under the United States Bankruptcy Code of 1978, as amended, or any other
similar applicable federal or state law, and the continuance of any such decree
or order unvacated and unstayed for a period of 90 days; or the commencement of
an involuntary case under the United States Bankruptcy Code of 1978, as amended,
in respect of such Person, which shall continue undismissed for a period of 90
days or entry of an order for relief in such case; or the entry of a decree or
order of a court having jurisdiction in the premises for the appointment on the
ground of insolvency or bankruptcy of a receiver, custodian, liquidator, trustee
or assignee in bankruptcy or insolvency of such Person or of its property, or
for the winding up or liquidation of its affairs, and such decree or order shall
have remained in force unvacated and unstayed for a period of 60 consecutive
days; or

     (b) the institution by such Person of proceedings to be adjudicated a
voluntary bankrupt, or the consent by such Person to the filing of a bankruptcy
proceeding against it, or the filing by such Person of a petition or answer or
consent seeking liquidation or reorganization under the United States Bankruptcy
Code of 1978, as amended, or other similar applicable Federal or State law, or
the consent by such Person to the filing of any such petition or to the
appointment on the ground of insolvency or bankruptcy of a receiver or custodian
or liquidator or trustee or assignee in bankruptcy or insolvency of such Person
or of its property, or shall make a general assignment for the benefit of
creditors.

     "Bankruptcy Laws" has the meaning specified in Section 1009.

     "Board Resolution" means a copy of a resolution certified by the Secretary
of the Depositor to have been duly adopted by the Depositor's Board of
Directors, or such committee of the Board of Directors or officers of the
Depositor to which authority to act on behalf of the Board of Directors has been
delegated, and to be in full force and effect on the date of such certification,
and delivered to the appropriate Trustee.

     "Business Day" means a day other than a Saturday or Sunday, a day on which
banking institutions in New York, New York or Wilmington, Delaware are
authorized or required by law, executive order or regulation to remain closed,
or a day on which the Property Trustee's Corporate Trust Office or the Corporate
Trust Office of the Debenture Trustee is closed for business.

     "Capital Security" means a preferred undivided beneficial interest in the
assets of the Trust, having a Liquidation Amount of $10 and having the rights
provided therefor in this Trust Agreement, including the right to receive
Distributions and a Liquidation Distribution as provided herein.

     "Capital Securities Certificate" means a certificate evidencing ownership
of Capital Securities, substantially in the form attached as Exhibit D.

                                       3
<PAGE>

     "Certificate of Trust" means the certificate of trust filed with the
Secretary of State of the State of Delaware with respect to the Trust, as
amended or restated from time to time.

     "Clearing Agency" means an organization registered as a "clearing agency"
pursuant to Section 17A of the Securities Exchange Act of 1934, as amended. DTC
shall be the initial Clearing Agency.

     "Clearing Agency Participant" means a broker, dealer, bank or other
financial institution or other Person for whom from time to time a Clearing
Agency effects book-entry transfers and pledges of securities deposited with the
Clearing Agency.

     "Closing Date" means the date of execution and delivery of this Trust
Agreement.

     "Code" means the Internal Revenue Code of 1986, as amended.

     "Commission" means the Securities and Exchange Commission, as from time to
time constituted, created under the Exchange Act, or, if at any time after the
execution of this instrument such Commission is not existing and performing the
duties now assigned to it under the Trust Indenture Act, then the body
performing such duties at such time.

     "Common Security" means an undivided beneficial interest in the assets of
the Trust, having a Liquidation Amount of $10 and having the rights provided
therefor in this Trust Agreement, including the right to receive Distributions
and a Liquidation Distribution as provided herein.

     "Common Securities Certificate" means a certificate evidencing ownership of
Common Securities, substantially in the form attached as Exhibit C.

     "Company" means Colorado Business Bankshares, Inc.

     "Corporate Trust Office" means the office at which, at any particular time,
the corporate trust business of the Property Trustee or the Debenture Trustee,
as the case may be, shall be principally administered, which office at the date
hereof, in each such case, is located at One Rodney Square, 920 King Street, 1st
Floor, Wilmington, Delaware 19801, Attn: Corporate Trust Administration.

     "Debenture Event of Default" means an "Event of Default" as defined in
Section 7.1 of the Indenture.

     "Debenture Redemption Date" means, with respect to any Debentures to be
redeemed under the Indenture, the date fixed for redemption under the Indenture.

     "Debenture Trustee" means First Union Trust Company, National Association,
a national banking association with its principal place of business in the State
of Delaware and any successor thereto, as trustee under the Indenture.

     "Debentures" means the $____________ aggregate principal amount of the
Depositor's ____________% Subordinated Debentures due 2030, issued pursuant to
the Indenture.

                                       4
<PAGE>

     "Definitive Capital Securities Certificates" means Capital Securities
Certificates issued in certified, fully registered form as provided in Section
513.

     "Delaware Bank" has the meaning specified in the Preamble to this Trust
Agreement.

     "Delaware Business Trust Act" means Chapter 38 of Title 12 of the Delaware
Code, 12 Delaware Code Sections 3801 et seq. as it may be amended from time to
time.

     "Delaware Trustee" means the commercial bank or trust company identified as
the "Delaware Trustee" in the Preamble to this Trust Agreement solely in its
capacity as Delaware Trustee of the Trust formed and continued hereunder and not
in its individual capacity, or its successor in interest in such capacity, or
any successor trustee appointed as herein provided.

     "Depositary" means DTC or any successor thereto.

     "Depositor" has the meaning specified in the Preamble to this Trust
Agreement.

     "Distribution Date" has the meaning specified in Section 401(a).

     "Distributions" means amounts payable in respect of the Trust Securities as
provided in Section 401.

     "DTC" means The Depository Trust Company.

     "Event of Default" means any one of the following events (whatever the
reason for such Event of Default and whether it shall be voluntary or
involuntary or be effected by operation of law or pursuant to any judgment,
decree or order of any court or any order, rule or regulation of any
administrative or governmental body):

     (a) the occurrence of a Debenture Event of Default; or

     (b) default by the Trust in the payment of any Distribution when it becomes
due and payable, and continuation of such default for a period of 30 days; or

     (c) default by the Trust in the payment of any Redemption Price of any
Trust Security when it becomes due and payable; or

     (d) default in the performance, or breach, in any material respect, of any
covenant or warranty of the Trustees in this Trust Agreement (other than a
covenant or warranty a default in the performance of which or the breach of
which is dealt with in clause (b) or (c), above) and continuation of such
default or breach for a period of 60 days after there has been given, by
registered or certified mail, to the defaulting Trustee or Trustees by the
Holders of at least 25% in aggregate Liquidation Amount of the Outstanding
Capital Securities a written notice specifying such default or breach and
requiring it to be remedied and stating that such notice is a "Notice of
Default" hereunder; or

                                       5
<PAGE>

     (e) the occurrence of a Bankruptcy Event with respect to the Property
Trustee and the failure by the Depositor to appoint a successor Property Trustee
within 60 days thereof.

     "Exchange Act" means the Securities Exchange Act of 1934, as amended.

     "Expense Agreement" means the Agreement as to Expenses and Liabilities
between the Depositor and the Trust, substantially in the form attached as
Exhibit C, as amended from time to time.

     "Expiration Date" has the meaning specified in Section 901.

     "Extended Interest Payment Period" has the meaning specified in Section 4.1
of the Indenture.

     "Global Capital Securities Certificate" means a Capital Securities
Certificate evidencing ownership of Global Capital Securities.

     "Global Capital Security" means a Capital Security, the ownership and
transfer of which shall be made through book entries by a Clearing Agency as
described herein.

     "Guarantee" means the Capital Securities Guarantee Agreement executed and
delivered by the Depositor and First Union Trust Company, National Association,
as trustee, contemporaneously with the execution and delivery of this Trust
Agreement, for the benefit of the holders of the Capital Securities, as amended
from time to time.

     "Indenture" means the Indenture, dated as of ____________, 2000, between
the Depositor and the Debenture Trustee, as trustee, as amended or supplemented
from time to time.

     "Investment Company Act," means the Investment Company Act of 1940, as
amended, as in effect at the date of execution of this instrument.

     "Lien" means any lien, pledge, charge, encumbrance, mortgage, deed of
trust, adverse ownership interest, hypothecation, assignment, security interest
or preference, priority or other security agreement or preferential arrangement
of any kind or nature whatsoever.

     "Like Amount" means (a) with respect to a redemption of Trust Securities,
Trust Securities having an aggregate Liquidation Amount equal to the aggregate
principal amount of Debentures to be contemporaneously redeemed in accordance
with the Indenture and the proceeds of which shall be used to pay the Redemption
Price of such Trust Securities; and (b) with respect to a distribution of
Debentures to Holders of Trust Securities in connection with a termination or
liquidation of the Trust, Debentures having a principal amount equal to the
Liquidation Amount of the Trust Securities of the Holder to whom such Debentures
are distributed. Each Debenture distributed pursuant to clause (b) above shall
carry with it accrued interest in an amount equal to the accrued and unpaid
interest then due on such Debentures.

     "Liquidation Amount" means the stated amount of $10 per Trust Security.

                                       6
<PAGE>

     "Liquidation Date" means the date on which Debentures are to be distributed
to Holders of Trust Securities in connection with a termination and liquidation
of the Trust pursuant to Section 904(a).

     "Liquidation Distribution" has the meaning specified in Section 904(d).

     "Majority in liquidation amount of the Outstanding Capital Securities"
means, except as provided in the terms of the Capital Securities or, except as
provided by the Trust Indenture Act, a vote by Holder(s) of Capital Securities,
voting separately as a class, of more than 50% of the Liquidation Amount
(including the stated amount that would be paid on redemption, liquidation or
otherwise, plus accumulated and unpaid Distributions to but excluding the date
upon which the voting percentages are determined) of all Outstanding Capital
Securities.

     "Officers' Certificate" means a certificate signed by the President or an
Executive Vice President and by the Treasurer or the Vice President--Finance or
the Secretary, of the Depositor, and delivered to the appropriate Trustee. One
of the officers signing an Officers' Certificate given pursuant to Section 816
shall be the principal executive, financial or accounting officer of the
Depositor. Any Officers' Certificate delivered with respect to compliance with a
condition or covenant provided for in this Trust Agreement shall include:

     (a) a statement that each officer signing the Officers' Certificate has
read the covenant or condition and the definitions relating thereto;

     (b) a brief statement of the nature and scope of the examination or
investigation undertaken by each officer in rendering the Officers' Certificate;

     (c) a statement that each such officer has made such examination or
investigation as, in such officer's opinion, is necessary to enable such officer
to express an informed opinion as to whether or not such covenant or condition
has been complied with; and

     (d) a statement as to whether, in the opinion of each such officer, such
condition or covenant has been complied with.

     "Opinion of Counsel" means an opinion in writing of independent, outside
legal counsel for the Trust, the Property Trustee, the Delaware Trustee or the
Depositor, who shall be reasonably acceptable to the Property Trustee.

     "Original Trust Agreement" has the meaning specified in the Recitals to
this Trust Agreement.

     "Outstanding", when used with respect to Capital Securities, means, as of
the date of determination, all Capital Securities theretofore executed and
delivered under this Trust Agreement, except:

     (a) Capital Securities theretofore canceled by the Property Trustee or
delivered to the Property Trustee for cancellation;

                                       7
<PAGE>

     (b) Capital Securities for whose payment or redemption money in the
necessary amount has been theretofore deposited with the Property Trustee or any
Paying Agent for the Holders of such Capital Securities; provided that, if such
Capital Securities are to be redeemed, notice of such redemption has been duly
given pursuant to this Trust Agreement; and

     (c) Capital Securities which have been paid or in exchange for or in lieu
of which other Capital Securities have been executed and delivered pursuant to
Sections 504, 505, 511 and 513; provided, however, that in determining whether
the Holders of the requisite Liquidation Amount of the Outstanding Capital
Securities have given any request, demand, authorization, direction, notice,
consent or waiver hereunder, Capital Securities owned by the Depositor, any
Trustee or any Affiliate of the Depositor or any Trustee shall be disregarded
and deemed not to be Outstanding, except that (a) in determining whether any
Trustee shall be protected in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only Capital Securities
that such Trustee knows to be so owned shall be so disregarded; and (b) the
foregoing shall not apply at any time when all of the outstanding Capital
Securities are owned by the Depositor, one or more of the Trustees and/or any
such Affiliate. Capital Securities so owned which have been pledged in good
faith may be regarded as Outstanding if the pledgee establishes to the
satisfaction of the Administrative Trustees the pledgee's right so to the
Depositor or any Affiliate of the Depositor.

     "Paying Agent" means any paying agent or co-paying agent appointed pursuant
to Section 509 and shall initially be the Bank.

     "Payment Account" means a segregated non-interest-bearing corporate trust
account maintained by the Property Trustee with the Bank in its trust department
for the benefit of the Securityholders in which all amounts paid in respect of
the Debentures shall be held and from which the Property Trustee shall make
payments to the Securityholders in accordance with Sections 401 and 402.

     "Person" means any individual, corporation, partnership, joint venture,
trust, limited liability company or corporation, unincorporated organization or
government or any agency or political subdivision thereof.

     "Property Trustee" means the commercial bank or trust company identified as
the "Property Trustee," in the Preamble to this Trust Agreement solely in its
capacity as Property Trustee of the Trust heretofore formed and continued
hereunder and not in its individual capacity, or its successor in interest in
such capacity, or any successor property trustee appointed as herein provided.

     "Redemption Date" means, with respect to any Trust Security to be redeemed,
the date fixed for such redemption by or pursuant to this Trust Agreement;
provided that each Debenture Redemption Date and the stated maturity of the
Debentures shall be a Redemption Date for a Like Amount of Trust Securities.

     "Redemption Price" means, with respect to any Trust Security, the
Liquidation Amount of such Trust Security, plus accumulated and unpaid
Distributions to the Redemption Date, plus the related amount of the premium, if
any, paid by the Depositor upon the concurrent redemption of a

                                       8
<PAGE>

Like Amount of Debentures, allocated on a pro rata basis (based on Liquidation
Amounts) among the Trust Securities.

     "Relevant Trustee" shall have the meaning specified in Section 810.

     "Securities Register" and "Securities Registrar" have the respective
meanings specified in Section 504.

     "Securityholder" or "Holder" means a Person in whose name a Trust Security
or Trust Securities is registered in the Securities Register; any such Person is
a beneficial owner within the meaning of the Delaware Business Trust Act.

     "Trust" means the Delaware business trust created and continued hereby and
identified on the cover page to this Trust Agreement.

     "Trust Agreement" means this Amended and Restated Trust Agreement, as the
same may be modified, amended or supplemented in accordance with the applicable
provisions hereof, including all exhibits hereto, including, for all purposes of
this Trust Agreement and any such modification, amendment or supplement, the
provisions of the Trust Indenture Act that are deemed to be a part of and govern
this Trust Agreement and any such modification, amendment or supplement,
respectively.

     "Trust Indenture Act" means the Trust Indenture Act of 1939, as amended, as
in force at the date as of which this instrument was executed; provided,
however, that in the event the Trust Indenture Act of 1939, as amended, is
amended after such date, "Trust Indenture Act" means, to the extent required by
any such amendment, the Trust Indenture Act of 1939 as so amended.

     "Trust Property" means (a) the Debentures; (b) the rights of the Property
Trustee under the Guarantee; (c) any cash on deposit in, or owing to, the
Payment Account; and (d) all proceeds and rights in respect of the foregoing and
any other property and assets for the time being held or deemed to be held by
the Property Trustee pursuant to the trusts of this Trust Agreement.

     "Trust Security" means any one of the Common Securities or the Capital
Securities.

     "Trust Securities Certificate" means any one of the Common Securities
Certificates or the Capital Securities Certificates.

     "Trustees" means, collectively, the Property Trustee, the Delaware Trustee
and the Administrative Trustees.

     "Underwriting Agreement" means the Underwriting Agreement, dated as of
____________, 2000, among the Trust, the Depositor and the Underwriters named
therein.

                                       9
<PAGE>

                                   ARTICLE II

                          ESTABLISHMENT OF THE TRUST

SECTION 201.  NAME.

     The Trust continued hereby shall be known as "Colorado Business Bankshares
Capital Trust I," as such name may be modified from time to time by the
Administrative Trustees following written notice to the Holders of Trust
Securities and the other Trustees, in which name the Trustees may engage in the
transactions contemplated hereby, make and execute contracts and other
instruments on behalf of the Trust and sue and be sued.

SECTION 202.  OFFICE OF THE DELAWARE TRUSTEE; PRINCIPAL PLACE OF
              BUSINESS.

     The address of the Delaware Trustee in the State of Delaware is c/o First
Union Trust Company, National Association, One Rodney Square, 920 King Street,
1st Floor, Wilmington, Delaware 19801, Attn: Corporate Trust Administration, or
such other address in the State of Delaware as the Delaware Trustee may
designate by written notice to the Securityholders and the Depositor. The
principal executive office of the Trust is c/o Colorado Business Bankshares,
Inc., 821 Seventeenth Street, Denver, Colorado 80202.

SECTION 203.  INITIAL CONTRIBUTION OF TRUST PROPERTY;
               ORGANIZATIONAL EXPENSES.

     The Trustees acknowledge receipt in trust from the Depositor in connection
with the Original Trust Agreement of the sum of $10, which constituted the
initial Trust Property. The Depositor shall pay organizational expenses of the
Trust as they arise or shall, upon request of any Trustee, promptly reimburse
such Trustee for any such expenses paid by such Trustee. The Depositor shall
make no claim upon the Trust Property for the payment of such expenses.

SECTION 204.  ISSUANCE OF THE CAPITAL SECURITIES.

     On ____________, 2000, the Depositor and an Administrative Trustee, on
behalf of the Trust and pursuant to the Original Trust Agreement, executed and
delivered the Underwriting Agreement. Contemporaneously with the execution and
delivery of this Trust Agreement, an Administrative Trustee, on behalf of the
Trust, shall execute in accordance with Section 502 and deliver in accordance
with the Underwriting Agreement, Capital Securities Certificates, registered in
the name of Persons entitled thereto in an aggregate amount of 2,000,000 Capital
Securities having an aggregate Liquidation Amount of $20,000,000 against receipt
of the aggregate purchase price of such Capital Securities of $20,000,000, which
amount such Administrative Trustee shall promptly deliver to the Property
Trustee.

                                       10
<PAGE>

SECTION 205.  ISSUANCE OF THE COMMON SECURITIES; SUBSCRIPTION AND
              PURCHASE OF DEBENTURES.

     Contemporaneously with the execution and delivery of this Trust Agreement,
an Administrative Trustee, on behalf of the Trust, shall execute in accordance
with Section 502 and deliver to the Depositor, Common Securities Certificates,
registered in the name of the Depositor, in an aggregate amount of Common
Securities having an aggregate Liquidation Amount of $_________ against payment
by the Depositor of such amount. Contemporaneously therewith, an Administrative
Trustee, on behalf of the Trust, shall subscribe to and purchase from the
Depositor Debentures, registered in the name of the Property Trustee on behalf
of the Trust and having an aggregate principal amount equal to $____________,
and, in satisfaction of the purchase price for such Debentures, the Property
Trustee, on behalf of the Trust, shall deliver to the Depositor the sum of
$____________.

SECTION 206.  DECLARATION OF TRUST.

     The exclusive purposes and functions of the Trust are (a) to issue and sell
Trust Securities and use the proceeds from such sale to acquire the Debentures;
and (b) to engage in those activities necessary, advisable or incidental
thereto. The Depositor hereby appoints the Trustees as trustees of the Trust, to
have all the rights, powers and duties to the extent set forth herein, and the
Trustees hereby accept such appointment. The Property Trustee hereby declares
that it shall hold the Trust Property in trust upon and subject to the
conditions set forth herein for the benefit of the Securityholders. The
Administrative Trustees shall have all rights, powers and duties set forth
herein and in accordance with applicable law with respect to accomplishing the
purposes of the Trust. The Delaware Trustee shall not be entitled to exercise
any powers, nor shall the Delaware Trustee have any of the duties and
responsibilities, of the Property Trustee or the Administrative Trustees set
forth herein. The Delaware Trustee shall be one of the Trustees of the Trust for
the sole and limited purpose of fulfilling the requirements of Section 3807 of
the Delaware Business Trust Act.

SECTION 207.  AUTHORIZATION TO ENTER INTO CERTAIN TRANSACTIONS.

     (a) The Trustees shall conduct the affairs of the Trust in accordance with
the terms of this Trust Agreement. Subject to the limitations set forth in
paragraph (b) of this Section 207 and Article VIII, and in accordance with the
following provisions (i) and (ii), the Administrative Trustees shall have the
authority to enter into all transactions and agreements determined by the
Administrative Trustees to be appropriate in exercising the authority, express
or implied, otherwise granted to the Administrative Trustees under this Trust
Agreement, and to perform all acts in furtherance thereof, including without
limitation, the acts set forth in the following provision (i) and the Property
Trustee shall have the authority to act, each as set forth below:

     (i) As among the Trustees, each Administrative Trustee, acting singly or
     jointly, shall have the power and authority to act on behalf of the Trust
     with respect to the following matters:

         (A) the issuance and sale of the Trust Securities and the compliance
         with the Underwriting Agreement in connection therewith;

                                       11
<PAGE>

          (B) to cause the Trust to enter into, and to execute, deliver and
          perform on behalf of the Trust, the Expense Agreement and such other
          agreements or documents as may be necessary or desirable in connection
          with the purposes and function of the Trust;

          (C) assisting in the registration of the Capital Securities under the
          Securities Act of 1933, as amended, and under state securities or blue
          sky laws, and the qualification of this Trust Agreement as a trust
          indenture under the Trust Indenture Act;

          (D) assisting in the listing of the Capital Securities upon the
          American Stock Exchange or such securities exchange or exchanges as
          shall be determined by the Depositor, the registration of the Capital
          Securities under the Exchange Act, the compliance with the listing
          requirements of the American Stock Exchange or the applicable
          securities exchange and the preparation and filing of all periodic and
          other reports and other documents pursuant to the foregoing;

          (E) the sending of notices (other than notices of default) and other
          information regarding the Trust Securities and the Debentures to the
          Securityholders in accordance with this Trust Agreement;

          (F) the appointment of a Paying Agent, authenticating agent and
          Securities Registrar in accordance with this Trust Agreement;

          (G) to the extent provided in this Trust Agreement, the winding up of
          the affairs of and liquidation of the Trust and the preparation,
          execution and filing of the certificate of cancellation with the
          Secretary of State of the State of Delaware;

          (H) to take all action that may be necessary or appropriate for the
          preservation and the continuation of the Trust's valid existence,
          rights, franchises and privileges as a statutory business trust under
          the laws of the State of Delaware and of each other jurisdiction in
          which such existence is necessary to protect the limited liability of
          the Holders of the Capital Securities or to enable the Trust to effect
          the purposes for which the Trust was created; and

          (I) the taking of any action incidental to the foregoing as the
          Administrative Trustees may from time to time determine is necessary
          or advisable to give effect to the terms of this Trust Agreement for
          the benefit of the Securityholders (without consideration of the
          effect of any such action on any particular Securityholder).

     (ii) As among the Trustees, the Property Trustee shall have the power, duty
and authority to act on behalf of the Trust with respect to the following
matters:

          (A) the establishment of the Payment Account;

          (B)  the receipt of the Debentures;

                                       12
<PAGE>

          (C) the collection of interest, principal and any other payments made
          in respect of the Debentures in the Payment Account;

          (D) the distribution of amounts owed to the Securityholders in respect
          of the Trust Securities in accordance with the terms of this Trust
          Agreement;

          (E) the exercise of all of the rights, powers and privileges of a
          holder of the Debentures;

          (F) the sending of notices of default and other information regarding
          the Trust Securities and the Debentures to the Securityholders in
          accordance with this Trust Agreement;

          (G) the distribution of the Trust Property in accordance with the
          terms of this Trust Agreement;

          (H) to the extent provided in this Trust Agreement, the winding up of
          the affairs of and liquidation of the Trust;

          (I) after an Event of Default, the taking of any action incidental to
          the foregoing as the Property Trustee may from time to time determine
          is necessary or advisable to give effect to the terms of this Trust
          Agreement and protect and conserve the Trust Property for the benefit
          of the Securityholders (without consideration of the effect of any
          such action on any particular Securityholder);

          (J) registering transfers of the Trust Securities in accordance with
          this Trust Agreement; and

          (K) except as otherwise provided in this Section 207(a)(ii), the
          Property Trustee shall have none of the duties, liabilities, powers or
          the authority of the Administrative Trustees set forth in Section
          207(a)(i).

     (b)  So long as this Trust Agreement remains in effect, the Trust (or the
Trustees acting on behalf of the Trust) shall not undertake any business,
activities or transaction except as expressly provided herein or contemplated
hereby. In particular, the Trustees shall not (i) acquire any investments or
engage in any activities not authorized by this Trust Agreement; (ii) sell,
assign, transfer, exchange, mortgage, pledge, set-off or otherwise dispose of
any of the Trust Property or interests therein, including to Securityholders,
except as expressly provided herein; (iii) take any action that would cause the
Trust to fail or cease to qualify as a "grantor trust" for United States federal
income tax purposes; (iv) incur any indebtedness for borrowed money or issue any
other debt; or (v) take or consent to any action that would result in the
placement of a Lien on any of the Trust Property. The Administrative Trustees
shall defend all claims and demands of all Persons at any time claiming any Lien
on any of the Trust Property adverse to the interest of the Trust or the
Securityholders in their capacity as Securityholders.

                                       13
<PAGE>

     (c)  In connection with the issue and sale of the Capital Securities, the
Depositor shall have the right and responsibility to assist the Trust with
respect to, or effect on behalf of the Trust, the following (and any actions
taken by the Depositor in furtherance of the following prior to the date of this
Trust Agreement are hereby ratified and confirmed in all respects):

          (i)   the preparation and filing by the Trust with the Commission and
          the execution on behalf of the Trust of a registration statement on
          the appropriate form in relation to the Capital Securities, the
          Debentures, and the Guarantee, including any amendments thereto;

          (ii)  the determination of the states in which to take appropriate
          action to qualify or, register for sale all or part of the Capital
          Securities and to do any and all such acts, other than actions which
          must be taken by or on behalf of the Trust, and advise the Trustees of
          actions they must take on behalf of the Trust, and prepare for
          execution and filing any documents to be executed and filed by the
          Trust or on behalf of the Trust, as the Depositor deems necessary or
          advisable in order to comply with the applicable laws of any such
          States;

          (iii) the preparation for filing by the Trust and execution on behalf
          of the Trust of an application to the American Stock Exchange or a
          national stock exchange or other organizations for listing upon notice
          of issuance of any Capital Securities and to file or cause an
          Administrative Trustee to file thereafter with such exchange or
          organization such notifications and documents as may be necessary from
          time to time;

          (iv)  the preparation for filing by the Trust with the Commission and
          the execution on behalf of the Trust of a registration statement on
          Form 8-A relating to the registration of the Capital Securities under
          Section 12(b) or 12(g) of the Exchange Act, including any amendments
          thereto;

          (v)   the negotiation of the terms of, and the execution and delivery
          of the Underwriting Agreement providing for the sale of the Capital
          Securities; and

          (vi)  the taking of any other actions necessary or desirable to carry
          out any of the foregoing activities.

     (d)  Notwithstanding anything herein to the contrary, the Trustees are
authorized and directed to conduct the affairs of the Trust and to operate the
Trust so that the Trust shall not be deemed to be an "investment company"
required to be registered under the Investment Company Act, shall be classified
as a "grantor trust" and not as an association taxable as a corporation for
United States federal income tax purposes and so that the Debentures shall be
treated as indebtedness of the Depositor for United States federal income tax
purposes. In this connection, subject to Section 1002, the Depositor and the
Trustees are authorized to take any action, not inconsistent with applicable law
or this Trust Agreement, that each of the Depositor and the Trustees determines
in their discretion to be necessary or desirable for such purposes.

                                       14
<PAGE>

SECTION 208.  ASSETS OF TRUST.

     The assets of the Trust shall consist of the Trust Property.

SECTION 209.  TITLE TO TRUST PROPERTY.

     Legal title to all Trust Property shall be vested at all times in the
Property Trustee (in its capacity as such) and shall be held and administered by
the Property Trustee for the benefit of the Securityholders in accordance with
this Trust Agreement.

                                  ARTICLE III

                                PAYMENT ACCOUNT

SECTION 301.  PAYMENT ACCOUNT.

     (a) On or prior to the Closing Date, the Property Trustee shall establish
the Payment Account. The Property Trustee and any agent of the Property Trustee
shall have exclusive control and sole right of withdrawal with respect to the
Payment Account for the purpose of making deposits and withdrawals from the
Payment Account in accordance with this Trust Agreement. All monies and other
property deposited or held from time to time in the Payment Account shall be
held by the Property Trustee in the Payment Account for the exclusive benefit of
the Securityholders and for distribution as herein provided, including (and
subject to) any priority of payments provided for herein.

     (b) The Property Trustee shall deposit in the Payment Account, promptly
upon receipt, all payments of principal of or interest on, and any other
payments or proceeds with respect to, the Debentures. Amounts held in the
Payment Account shall not be invested by the Property Trustee pending
distribution thereof.

                                  ARTICLE IV

                           DISTRIBUTIONS; REDEMPTION

SECTION 401.  DISTRIBUTIONS.

     (a) Distributions on the Trust Securities shall be cumulative, and shall
accumulate whether or not there are funds of the Trust available for the payment
of Distributions. Distributions shall accumulate from the date of issuance, and,
except during any Extended Interest Payment Period with respect to the
Debentures, shall be payable quarterly in arrears on the last calendar day of
March, June, September and December of each year, commencing on September 30,
2000. If any date on which a Distribution is otherwise payable on the Trust
Securities is not a Business Day, then the payment of such Distribution shall be
made on the next succeeding day that is a Business Day (and without any interest
or other payment in respect of any such delay) except that, if such Business

                                       15
<PAGE>

Day is in the next succeeding calendar year, such payment shall be made on the
immediately preceding Business Day (and without any reduction of interest or any
other payment in respect of any such acceleration), in each case with the same
force and effect as if made on such date (each date on which distributions are
payable in accordance with this Section 401(a), a "Distribution Date").

     (b) The Trust Securities represent undivided beneficial interests in the
Trust Property, and, as a practical matter, the Distributions on the Trust
Securities shall be payable at a rate of ____% per annum of the Liquidation
Amount of the Trust Securities. The amount of Distributions payable for any full
period shall be computed on the basis of a 360-day year of twelve 30-day months.
The amount of Distributions for any partial period shall be computed on the
basis of the number of days elapsed in a 360-day year of twelve 30-day months.
During any Extended Interest Payment Period with respect to the Debentures,
Distributions on the Capital Securities shall be deferred for a period equal to
the Extended Interest Payment Period. The amount of Distributions payable for
any period shall include the Additional Amounts and Additional Interest, if any.

     (c) Distributions on the Trust Securities shall be made by the Property
Trustee solely from the Payment Account and shall be payable on each
Distribution Date only to the extent that the Trust has funds on hand and
immediately available by 12:30 p.m. on each Distribution Date in the Payment
Account for the payment of such Distributions.

     (d) Distributions on the Trust Securities with respect to a Distribution
Date shall be payable to the record holders thereof as they appear on the
Securities Register for the Trust Securities on the relevant record date, which
shall be the Business Day immediately prior to the relevant Distribution Date.

SECTION 402.  REDEMPTION.

     (a) On each Debenture Redemption Date and on the maturity of the
Debentures, the Trust shall be required to redeem a Like Amount of Trust
Securities at the Redemption Price.

     (b) Notice of redemption shall be given by the Property Trustee by first-
class mail, postage prepaid, mailed not less than 30 nor more than 60 days prior
to the Redemption Date to each Holder of Trust Securities to be redeemed, at
such Holder's address appearing in the Securities Register. The Property Trustee
shall have no responsibility for the accuracy of any CUSIP number contained in
such notice. All notices of redemption shall state:

         (i)   the Redemption Date;

         (ii)  the Redemption Price;

         (iii) the CUSIP number;

         (iv)  if less than all the Outstanding Trust Securities are to be
         redeemed, the identification and the aggregate Liquidation Amount of
         the particular Trust Securities to be redeemed;

                                       16
<PAGE>

         (v)  that, on the Redemption Date, the Redemption Price shall become
         due and payable upon each such Trust Security to be redeemed and that
         Distributions thereon shall cease to accumulate on and after said date,
         except as provided in Section 402(d); and

         (vi) the place or places at which Trust Securities are to be
         surrendered for the payment of the Redemption Price.

     (c) The Trust Securities redeemed on each Redemption Date shall be redeemed
at the Redemption Price with the proceeds from the contemporaneous redemption of
Debentures. Redemptions of the Trust Securities shall be made and the Redemption
Price shall be payable on each Redemption Date only to the extent that the Trust
has immediately available funds then on hand and available in the Payment
Account for the payment of such Redemption Price.

     (d) If the Property Trustee gives a notice of redemption in respect of any
Capital Securities, then, by 12:00 noon, New York City time, on the Redemption
Date, subject to Section 402(c), the Property Trustee, subject to Section
402(c), shall, with respect to Capital Securities held in global form, deposit
with the Clearing Agency for such Capital Securities, to the extent available
therefor, funds sufficient to pay the applicable Redemption Price and will give
such Clearing Agency irrevocable instructions and authority to pay the
Redemption Price to the Holders of the Capital Securities to pay to the
appropriate beneficial holders. With respect to Trust Securities that are not
held in global form, the Property Trustee, subject to Section 402(c), shall
deposit with the Paying Agent funds sufficient to pay the applicable Redemption
Price and shall give the Paying Agent irrevocable instructions and authority to
pay the Redemption Price to the record holders thereof upon surrender of their
Capital Securities Certificates. Notwithstanding the foregoing, Distributions
payable on or prior to the Redemption Date for any Trust Securities called for
redemption shall be payable to the Holders of such Trust Securities as they
appear on the Register for the Trust Securities on the relevant record dates for
the related Distribution Dates. If notice of redemption shall have been given
and funds deposited as required, then upon the date of such deposit, (i) all
rights of Securityholders holding Trust Securities so called for redemption
shall cease, except the right of such Securityholders to receive the Redemption
Price, (ii) such Securities shall cease to be Outstanding, (iii) the Clearing
Agency for the Capital Securities or its nominee, as the registered Holder of
the Global Capital Securities Certificate, shall receive a registered global
certificate or certificates representing the Debentures to be delivered upon
such distribution with respect to Capital Securities held by the Clearing Agency
or its nominee, and (iv) any Trust Securities Certificates not held by the
Clearing Agency for the Capital Securities or its nominee as specified in clause
(iii) above will be deemed to represent Debentures having a principal amount
equal to the stated Liquidation Amount of the Trust Securities represented
thereby and bearing accrued and unpaid interest in an amount equal to the
accumulated and unpaid Distributions on such Trust Securities until such
certificates are presented to the Securities Registrar for transfer or
reissuance. In the event that any date on which any Redemption Price is payable
is not a Business Day, then payment of the Redemption Price payable on such date
shall be made on the next succeeding day that is a Business Day (and without any
interest or other payment in respect of any such delay) except that, if such
Business Day is in the next succeeding calendar year, such payment shall be made
on the immediately preceding Business Day (and without any reduction of interest
or any other payment in respect of any such acceleration), in each case with the
same force and effect as if made on such

                                       17
<PAGE>

date. In the event that payment of the Redemption Price in respect of any Trust
Securities called for redemption is improperly withheld or refused and not paid
either by the Trust or by the Depositor pursuant to the Guarantee, Distributions
on such Trust Securities shall continue to accumulate, at the then applicable
rate, from the Redemption Date originally established by the Trust for such
Trust Securities to the date such Redemption Price is actually paid, in which
case the actual payment date shall be the date fixed for redemption for purposes
of calculating the Redemption Price.

     (e) Payment of the Redemption Price on the Trust Securities shall be made
to the record holders thereof as they appear on the Securities Register for the
Trust Securities on the relevant record date, which shall be the date 15 days
prior to the relevant Redemption Date.

     (f) Subject to Section 403(a), if less than all the Outstanding Trust
Securities are to be redeemed on a Redemption Date, then the aggregate
Liquidation Amount of Trust Securities to be redeemed shall be allocated on a
pro rata basis (based on Liquidation Amounts) among the Common Securities and
the Capital Securities. The particular Capital Securities to be redeemed shall
be selected not more than 60 days prior to the Redemption Date by the Property
Trustee from the Outstanding Capital Securities not previously called for
redemption, by such method (including, without limitation, by lot) as the
Property Trustee shall deem fair and appropriate and which may provide for the
selection for redemption of portions (equal to $10 or an integral multiple of
$10 in excess thereof) of the Liquidation Amount of Capital Securities of a
denomination larger than $10. The Property Trustee shall promptly notify the
Securities Registrar in writing of the Capital Securities selected for
redemption and, in the case of any Capital Securities selected for partial
redemption, the Liquidation Amount thereof to be redeemed. For all purposes of
this Trust Agreement, unless the context otherwise requires, all provisions
relating to the redemption of Capital Securities shall relate, in the case of
any Capital Securities redeemed or to be redeemed only in part, to the portion
of the Liquidation Amount of Capital Securities which has been or is to be
redeemed.

SECTION 403.  SUBORDINATION OF COMMON SECURITIES.

     (a) Payment of Distributions (including Additional Amounts, if applicable)
on, and the Redemption Price of, the Trust Securities, as applicable, shall be
made, subject to Section 402(f), pro rata among the Common Securities and the
Capital Securities based on the Liquidation Amount of the Trust Securities;
provided, however, that if on any Distribution Date or Redemption Date any Event
of Default resulting from a Debenture Event of Default shall have occurred and
be continuing, no payment of any Distribution (including Additional Amounts, if
applicable) on, or Redemption Price of, any Common Security, and no other
payment on account of the redemption, liquidation or other acquisition of Common
Securities, shall be made unless payment in full in cash of all accumulated and
unpaid Distributions (including Additional Amounts, if applicable) on all
Outstanding Capital Securities for all Distribution periods terminating on or
prior thereto, or in the case of payment of the Redemption Price the full amount
of such Redemption Price on all Outstanding Capital Securities then called for
redemption, shall have been made or provided for, and all funds immediately
available to the Property Trustee shall first be applied to the payment in full
in cash of all Distributions (including Additional Amounts, if applicable) on,
or the Redemption Price of, Capital Securities then due and payable.

                                       18
<PAGE>

     (b) In the case of the occurrence of any Event of Default resulting from a
Debenture Event of Default, the record holder of Common Securities, the
Depositor, shall be deemed to have waived any right to act with respect to any
such Event of Default under this Trust Agreement until the effect of all such
Events of Default with respect to the Capital Securities shall have been cured,
waived or otherwise eliminated. Until any such Event of Default under this Trust
Agreement with respect to the Capital Securities shall have been so cured,
waived or otherwise eliminated, the Property Trustee shall act solely on behalf
of the record holders of the Capital Securities and not the record holder of the
Common Securities, and only the Holders of the Capital Securities shall have the
right to direct the Property Trustee to act on their behalf.

SECTION 404.  PAYMENT PROCEDURES.

     Payments of Distributions (including Additional Amounts, if applicable) in
respect of the Capital Securities shall be made by check mailed to the address
of the Person entitled thereto as such address shall appear on the Securities
Register or, if the Capital Securities are held by a Clearing Agency, such
Distributions shall be made to the Clearing Agency in immediately available
funds, which will credit the relevant accounts on the applicable Distribution
Dates. Payments in respect of the Common Securities shall be made in such manner
as shall be mutually agreed between the Property Trustee and the Common
Securityholder.

SECTION 405.  TAX RETURNS AND REPORTS.

     The Administrative Trustees shall prepare (or cause to be prepared), at the
Depositor's expense, and file all United States federal, state and local tax and
information returns and reports required to be filed by or in respect of the
Trust. In this regard, the Administrative Trustees shall (a) prepare and file
(or cause to be prepared and filed) the appropriate Internal Revenue Service
forms required to be filed in respect of the Trust in each taxable year of the
Trust; and (b) prepare and furnish (or cause to be prepared and furnished) to
each Securityholder the appropriate Internal Revenue Service forms required to
be furnished to such Securityholder or the information required to be provided
on such form. The Administrative Trustees shall provide the Depositor with a
copy of all such returns and reports promptly after such filing or furnishing.
The Property Trustee shall comply with United States federal withholding and
backup withholding tax laws and information reporting requirements with respect
to any payments to Securityholders under the Trust Securities.

SECTION 406.  PAYMENT OF TAXES, DUTIES, ETC. OF THE TRUST.

     Upon receipt under the Debentures of Additional Interest (as defined in
Section 1.1 of the Indenture), the Property Trustee, at the direction of an
Administrative Trustee or the Depositor, shall promptly pay any taxes, duties or
governmental charges of whatsoever nature (other than withholding taxes) imposed
on the Trust by the United States or any other taxing authority.

SECTION 407.  PAYMENTS UNDER INDENTURE.

     Any amount payable hereunder to any record holder of Capital Securities
shall be reduced by the amount of any corresponding payment such Holder has
directly received under the Indenture pursuant to Section 513(b) or (c) hereof.

                                       19
<PAGE>

                                   ARTICLE V

                         TRUST SECURITIES CERTIFICATES

SECTION 501.  INITIAL OWNERSHIP.

     Upon the creation of the Trust and the contribution by the Depositor
pursuant to Section 203 and until the issuance of the Trust Securities, and at
any time during which no Trust Securities are outstanding, the Depositor shall
be the sole beneficial owner of the Trust.

SECTION 502.  THE TRUST SECURITIES CERTIFICATES.

     The Capital Securities Certificates shall be issued in minimum
denominations of $10 Liquidation Amount and integral multiples of $10 in excess
thereof, and the Common Securities Certificates shall be issued in denominations
of $10 Liquidation Amount and integral multiples thereof. The Trust Securities
Certificates shall be executed on behalf of the Trust by manual or facsimile
signature of at least one Administrative Trustee. Trust Securities Certificates
bearing the manual or facsimile signatures of individuals who were, at the time
when such signatures shall have been affixed, authorized to sign on behalf of
the Trust, shall be validly issued and entitled to the benefits of this Trust
Agreement, notwithstanding that such individuals or any of them shall have
ceased to be so authorized prior to the delivery of such Trust Securities
Certificates or did not hold such offices at the date of delivery of such Trust
Securities Certificates. A transferee of a Trust Securities Certificate shall
become a Securityholder, and shall be entitled to the rights and subject to the
obligations of a Securityholder hereunder, upon due registration of such Trust
Securities Certificate in such transferee's name pursuant to Sections 504 and
511.

SECTION 503.  EXECUTION, AUTHENTICATION AND DELIVERY OF TRUST
              SECURITIES CERTIFICATES.

     (a) On the Closing Date and on any date on which the underwriters exercise
their over-allotment option, if any and as applicable (an "Option Closing
Date"), the Administrative Trustees shall cause Trust Securities Certificates,
in an aggregate Liquidation Amount as provided in Sections 204 and 205, to be
executed on behalf of the Trust by at least one of the Administrative Trustees
and delivered to or upon the written order of the Depositor, signed by its Chief
Executive Officer, President, any Vice President or its Treasurer without
further corporate action by the Depositor, in authorized denominations.

     (b) A Trust Securities Certificate shall not be valid until authenticated
by the manual signature of an authorized signatory of the Property Trustee. The
signature shall be conclusive evidence that the Trust Securities Certificate has
been authenticated under this Trust Agreement. Each Trust Security Certificate
shall be dated the date of its authentication.

     Upon the written order of the Trust signed by one of the Administrative
Trustees, the Property Trustee shall authenticate and make available for
delivery the Trust Securities Certificates.

                                       20
<PAGE>

     The Property Trustee may appoint an Authenticating Agent acceptable to the
Trust to authenticate the Trust Securities. An Authenticating Agent may
authenticate the Trust Securities whenever the Property Trustee may do so. Each
reference in this Trust Agreement to authentication by the Property Trustee
includes authentication by such agent. An Authenticating Agent has the same
rights as the Property Trustee to deal with the Company or the Trust.

SECTION 503A. GLOBAL CAPITAL SECURITY.

     (a) Any Global Capital Security issued under this Trust Agreement shall be
registered in the name of the nominee of the Clearing Agency and delivered to
such custodian therefor, and such Global Capital Security shall constitute a
single Capital Security for all purposes of this Trust Agreement.

     (b) Notwithstanding any other provision in this Trust Agreement, no Global
Capital Security may be exchanged for Capital Securities registered in the names
of persons other than the Depositary or its nominee unless (i) the Depositary
notifies the Debenture Trustee that it is unwilling or unable to continue as a
depositary for such Global Capital Securities and the Depositor is unable to
locate a qualified successor depositary, (ii) the Depositor executes and
delivers to the Trustee a written order stating that it elects to terminate the
book-entry system through the Depositary or (iii) there shall have occurred and
be continuing a Debenture Event of Default.

     (c) If a Capital Security is to be exchanged in whole or in part for a
beneficial interest in a Global Capital Security, then either (i) such Global
Capital Security shall be so surrendered for exchange or cancellation as
provided in this Article V or (ii) the Liquidation amount thereof shall be
reduced or increased by an amount equal to the portion thereof to be so
exchanged or canceled, or equal to the Liquidation Amount of such other Capital
Securities to be so exchanged for a beneficial interest therein, as the case may
be, by means of an appropriate adjustment made on the records of the Securities
Registrar, whereupon the Property Trustee, in accordance with the rules and
procedures of the Depositary for such Global Capital Security (the "Applicable
Procedures"), shall instruct the Clearing Agency or its authorized
representative to make a corresponding adjustment to its records. Upon any such
surrender or adjustment of a Global Capital Security by the Clearing Agency,
accompanied by registration instructions, the Administrative Trustees shall
execute and the Property Trustee shall, subject to Section 504(b) and as
otherwise provided in this Article V, authenticate and deliver any Capital
Securities issuable in exchange for such Global Capital Security (or any portion
thereof) in accordance with the instructions of the Clearing Agency. The
Property Trustee shall not be liable for any delay in delivery of such
instructions and may conclusively rely on, and shall be fully protected in
relying on, such instructions.

     (d) Every Capital Security executed, authenticated and delivered upon
registration of transfer of, or in exchange for or in lieu of, a Global Capital
Security or any portion thereof, whether pursuant to this Article V or
otherwise, shall be executed, authenticated and delivered in the form of, and
shall be, a Global Capital Security, unless such Global Capital Security is
registered in the name of a Person other than the Clearing Agency for such
Global Capital Security or a nominee thereof.

                                       21
<PAGE>

     (e) The Clearing Agency or its nominee, as the registered owner of a Global
Capital Security, shall be considered the Holder of the Capital Securities
represented by such Global Capital Security for all purposes under this Trust
Agreement and the Capital Securities, and owners of beneficial interests in such
Global Capital Security shall hold such interests pursuant to the Applicable
Procedures and, except as otherwise provided herein, shall not be entitled to
receive physical delivery of any such Capital Securities in definitive form and
shall not be considered the Holders thereof under this Trust Agreement.
Accordingly, any such owner's beneficial interest in the Global Capital
Securities shall be shown only on, and the transfer of such interest shall be
effected only through, records maintained by the Clearing Agency or its nominee.
Neither the Property Trustee, the Securities Registrar nor Depositor shall have
any liability in respect of any transfers effected by the Clearing Agency.

     (f) The rights of owners of beneficial interests in a Global Capital
Security shall be exercised only through the Clearing Agency and shall be
limited to those established by law and agreements between such owners and the
Clearing Agency.

SECTION 504.  REGISTRATION OF TRANSFER AND EXCHANGE OF CAPITAL
              SECURITIES CERTIFICATES.

     (a) The Depositor shall keep or cause to be kept, at the office or agency
maintained pursuant to Section 508, a register or registers for the purpose of
registering Trust Securities Certificates and, subject to the provisions of
Section 503A, transfers and exchanges of Capital Securities Certificates (herein
referred to as the "Securities Register") in which the registrar designated by
the Depositor (the "Securities Registrar"), subject to such reasonable
regulations as it may prescribe, shall provide for the registration of Capital
Securities Certificates and Common Securities Certificates (subject to Section
510 in the case of the Common Securities Certificates) and registration of
transfers and exchanges of referred Securities Certificates as herein provided.
The Property Trustee shall be the initial Securities Registrar.

     (b) Subject to the provisions of Section 503A, upon surrender for
registration of transfer of any Capital Securities Certificate at the office or
agency maintained pursuant to Section 508, the Administrative Trustees or any
one of them shall execute and deliver, in the name of the designated transferee
or transferees, one or more new Capital Securities Certificates in authorized
denominations of a like aggregate Liquidation Amount dated the date of execution
by such Administrative Trustee or Trustees. The Securities Registrar shall not
be required to register the transfer of any Capital Securities that have been
called for redemption. At the option of a record holder, Capital Securities
Certificates may be exchanged for other Capital Securities Certificates in
authorized denominations of the same class and of a like aggregate Liquidation
Amount upon surrender of the Capital Securities Certificates to be exchanged at
the office or agency maintained pursuant to Section 508.

     (c) Every Capital Securities Certificate presented or surrendered for
registration of transfer or exchange, subject to the provisions of Section 503A,
shall be accompanied by a written instrument of transfer in form satisfactory to
the Property Trustee and the Securities Registrar duly executed by the Holder or
his attorney duly authorized in writing. Each Capital Securities Certificate
surrendered for registration of transfer or exchange shall be canceled and
subsequently disposed of

                                       22
<PAGE>

by the Property Trustee in accordance with its customary practice. The Trust
shall not be required to (i) issue, register the transfer of, or exchange any
Capital Securities during a period beginning at the opening of business 15
calendar days before the date of mailing of a notice of redemption of any
Capital Securities called for redemption and ending at the close of business on
the day of such mailing; or (ii) register the transfer of or exchange any
Capital Securities so selected for redemption, in whole or in part, except the
unredeemed portion of any such Capital Securities being redeemed in part.

     (d) No service charge shall be made for any registration of transfer or
exchange of Capital Securities Certificates, subject to the provisions of
Section 503A, but the Securities Registrar may require payment of a sum
sufficient to cover any tax or governmental charge that may be imposed in
connection with any transfer or exchange of Capital Securities Certificates.

     (e) Capital Securities may only be transferred, in whole or in part, in
accordance with the terms and conditions set forth in this Trust Agreement. Any
transfer or purported transfer of any Capital Security not made in accordance
with this Trust Agreement shall be null and void. A Capital Security that is not
a Global Capital Security may be transferred, in whole or in part, to a Person
who takes delivery in the form of another Capital Security that is not a Global
Capital Security as provided in Section 504(a). A beneficial interest in a
Global Capital Security may be exchanged for a Capital Security that is not a
Global Capital Security only as provided in Section 503A.

SECTION 505.  MUTILATED, DESTROYED, LOST OR STOLEN TRUST
              SECURITIES CERTIFICATES.

     If (a) any mutilated Trust Securities Certificate shall be surrendered to
the Securities Registrar, or if the Securities Registrar shall receive evidence
to its satisfaction of the destruction, loss or theft of any Trust Securities
Certificate; and (b) there shall be delivered to the Securities Registrar and
the Administrative Trustees such security or indemnity as may be required by
them to save each of them harmless, then in the absence of notice that such
Trust Securities Certificate shall have been acquired by a bona fide purchaser,
the Administrative Trustees, or any one of them, on behalf of the Trust shall
execute and the Property Trustee in the case of a Capital Securities Certificate
shall authenticate and make available for delivery, in exchange for or in lieu
of any such mutilated, destroyed, lost or stolen Trust Securities Certificate, a
new Trust Securities Certificate of like class, tenor and denomination. In
connection with the issuance of any new Trust Securities Certificate under this
Section 505, the Administrative Trustees or the Securities Registrar may require
the payment of a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection therewith. Any duplicate Trust Securities
Certificate issued pursuant to this Section 505 shall constitute conclusive
evidence of an undivided beneficial interest in the assets of the Trust, as if
originally issued, whether or not the lost, stolen or destroyed Trust Securities
Certificate shall be found at any time.

SECTION 506.  PERSONS DEEMED SECURITYHOLDERS.

     The Trustees, the Paying Agent and the Securities Registrar shall treat the
Person in whose name any Trust Securities Certificate shall be registered in the
Securities Register as the owner of such Trust Securities Certificate for the
purpose of receiving Distributions and for all other purposes

                                       23
<PAGE>

whatsoever, and neither the Trustees nor the Securities Registrar shall be bound
by any notice to the contrary.

SECTION 507.  ACCESS TO LIST OF SECURITYHOLDERS' NAMES
              AND ADDRESSES.

     At any time when the Property Trustee is not also acting as the Securities
Registrar, the Administrative Trustees or the Depositor shall furnish or cause
to be furnished to the Property Trustee (a) within five Business Days of each
record date, a list, in such form as the Property Trustee may reasonably
require, of the names and addresses of the Securityholders as of the most recent
record date; and (b) promptly after receipt by any Administrative Trustee or the
Depositor of a request therefor from the Property Trustee in order to enable the
Property Trustee to discharge its obligations under this Trust Agreement, in
each case to the extent such information is in the possession or control of the
Administrative Trustees or the Depositor and is not identical to a previously
supplied list or has not otherwise been received by the Property Trustee in its
capacity as Securities Registrar. The rights of Securityholders to communicate
with other Securityholders with respect to their rights under this Trust
Agreement or under the Trust Securities, and the corresponding rights and
obligations of the Property Trustee shall be as provided in the Trust Indenture
Act. Each Holder, by receiving and holding a Trust Securities Certificate, and
each owner of a beneficial interest in the Global Capital Securities shall be
deemed to have agreed not to hold the Depositor, the Property Trustee or the
Administrative Trustees accountable by reason of the disclosure of its name and
address, regardless of the source from which such information was derived.

SECTION 508.  MAINTENANCE OF OFFICE OR AGENCY.

     The Administrative Trustees shall maintain, or cause to be maintained, in
The City of New York, New York or Wilmington, Delaware or other location
designated by the Administrative Trustees, an office or offices or agency or
agencies where Capital Securities Certificates may be surrendered for
registration of transfer or exchange and where notices and demands to or upon
the Trustees in respect of the Trust Securities Certificates may be served. The
Administrative Trustees initially designate the Corporate Trust Office of the
Property Trustee, First Union Trust Company, National Association, as the
principal corporate trust office for such purposes. The Administrative Trustees
shall give prompt written notice to the Depositor and to the Securityholders of
any change in the location of the Securities Register or any such office or
agency.

SECTION 509.  APPOINTMENT OF PAYING AGENT.

     The Paying Agent shall make Distributions to Securityholders from the
Payment Account and shall report the amounts of such Distributions to the
Property Trustee and the Administrative Trustees. Any Paying Agent shall have
the revocable power to withdraw funds from the Payment Account for the purpose
of making the Distributions referred to above. The Administrative Trustees may
revoke such power and remove the Paying Agent if such Trustees determine in
their sole discretion that the Paying Agent shall have failed to perform its
obligations under this Trust Agreement in any material respect. The Paying Agent
shall initially be the Property Trustee, and any co-paying agent chosen by the
Property Trustee, and acceptable to the Administrative Trustees and

                                       24
<PAGE>

the Depositor. Any Person acting as Paying Agent shall be permitted to resign as
Paying Agent upon 30 days' written notice to the Administrative Trustees, the
Property Trustee and the Depositor. In the event that the Property Trustee shall
no longer be the Paying Agent or a successor Paying Agent shall resign or its
authority to act be revoked, the Administrative Trustees shall appoint a
successor that is acceptable to the Property Trustee and the Depositor to act as
Paying Agent (which shall be a bank or trust company). The Administrative
Trustees shall cause such successor Paying Agent or any additional Paying Agent
appointed by the Administrative Trustees to execute and deliver to the Trustees
an instrument in which such successor Paying Agent or additional Paying Agent
shall agree with the Trustees that as Paying Agent, such successor Paying Agent
or additional Paying Agent shall hold all sums, if any, held by it for payment
to the Securityholders in trust for the benefit of the Securityholders entitled
thereto until such sums shall be paid to such Securityholders. The Paying Agent
shall return all unclaimed funds to the Property Trustee and, upon removal of a
Paying Agent, such Paying Agent shall also return all funds in its possession to
the Property Trustee. The provisions of Sections 801, 803 and 806 shall apply to
the Property Trustee also in its role as Paying Agent, for so long as the
Property Trustee shall act as Paying Agent and, to the extent applicable, to any
other paying agent appointed hereunder. Any reference in this Agreement to the
Paying Agent shall include any co-paying agent unless the context requires
otherwise.

SECTION 510.  OWNERSHIP OF COMMON SECURITIES BY DEPOSITOR.

     On the Closing Date, the Depositor shall acquire and retain beneficial and
record ownership of the Common Securities. To the fullest extent permitted by
law, any attempted transfer of the Common Securities (other than a transfer in
connection with a merger or consolidation of the Depositor into another
corporation pursuant to Section 12.1 of the Indenture) shall be void. The
Administrative Trustees shall cause each Common Securities Certificate issued to
the Depositor to contain a legend stating "THIS CERTIFICATE IS NOT TRANSFERABLE
EXCEPT IN COMPLIANCE WITH SECTION 510 OF THE TRUST AGREEMENT."

SECTION 511.  TRUST SECURITIES CERTIFICATES.

     (a) Upon their original issuance, Capital Securities Certificates shall be
issued in the form of one or more fully registered Global Capital Securities
Certificates which will be deposited with or on behalf of the Clearing Agency
and registered in the name of the Clearing Agency's nominee. Unless and until it
is exchangeable in whole or in part for the Capital Securities in definitive
form, a global security may not be transferred except as a whole by the Clearing
Agency to a nominee of the Clearing Agency or by a nominee of the Clearing
Agency to the Clearing Agency or another nominee of the Clearing Agency or by
the Clearing Agency or any such nominee to a successor of such Clearing Agency
or a nominee of such successor.

     (b) A single Common Securities Certificate representing the Common
Securities shall be issued to the Depositor in the form of a definitive Common
Securities Certificate.

                                       25
<PAGE>

SECTION 512.  NOTICES TO CLEARING AGENCY.

     To the extent that a notice or other communication to the Holders is
required under this Trust Agreement, for so long as Capital Securities are
represented by a Global Capital Securities Certificate, the Trustees shall give
all such notices and communications specified herein to be given to the Clearing
Agency, and shall have no obligations to provide notice to the owners of the
beneficial interest in the Global Capital Securities.

SECTION 513.  RIGHTS OF SECURITYHOLDERS.

     (a) The legal title to the Trust Property is vested exclusively in the
Property Trustee (in its capacity as such) in accordance with Section 209, and
the Securityholders shall not have any right or title therein other than the
undivided beneficial interest in the assets of the Trust conferred by their
Trust Securities and they shall have no right to call for any partition or
division of property, profits or rights of the Trust except as described below.
The Trust Securities shall be personal property giving only the rights
specifically set forth therein and in this Trust Agreement. The Trust Securities
shall have no preemptive or similar rights. When issued and delivered to Holders
of the Capital Securities against payment of the purchase price therefor, the
Capital Securities shall be fully paid and nonassessable interests in the Trust.
The Holders of the Capital Securities, in their capacities as such, shall be
entitled to the same limitation of personal liability extended to stockholders
of private corporations for profit organized under the General Corporation Law
of the State of Delaware.

     (b) For so long as any Capital Securities remain Outstanding, if, upon a
Debenture Event of Default, the Debenture Trustee fails or the holders of not
less than 25% in principal amount of the outstanding Debentures fail to declare
the principal of all of the Debentures to be immediately due and payable, the
Holders of at least 25% in Liquidation Amount of the Capital Securities then
Outstanding shall have such right by a notice in writing to the Depositor and
the Debenture Trustee; and upon any such declaration such principal amount of
and the accrued interest on all of the Debentures shall become immediately due
and payable, provided that the payment of principal and interest on such
Debentures shall remain subordinated to the extent provided in the Indenture.

     (c) For so long as any Capital Securities remain outstanding, upon a
Debenture Event of Default arising from the failure to pay interest or principal
on the Debentures, the Holders of any Capital Securities then Outstanding shall,
to the fullest extent permitted by law, have the right to directly institute
proceedings for enforcement of payment to such Holders of principal of or
interest on the Debentures having a principal amount equal to the Liquidation
Amount of the Capital Securities of such Holders.

                                       26
<PAGE>

                                  ARTICLE VI

                   ACTS OF SECURITYHOLDERS; MEETINGS; VOTING

SECTION 601.  LIMITATIONS ON VOTING RIGHTS.

     (a) Except as provided in this Section 601, in Sections 512, 810 and 1002
and in the Indenture and as otherwise required by law, no Holder of Capital
Securities shall have any right to vote or in any manner otherwise control the
administration, operation and management of the Trust or the obligations of the
parties hereto, nor shall anything herein set forth, or contained in the terms
of the Trust Securities Certificates, be construed so as to constitute the
Securityholders from time to time as partners or members of an association.

     (b) So long as any Debentures are held by the Property Trustee on behalf of
the Trust, the Trustees shall not (i) direct the time, method and place of
conducting any proceeding for any remedy available to the Debenture Trustee, or
executing any trust or power conferred on the Debenture Trustee with respect to
such Debentures; (ii) waive any past default which is waivable under Article VII
of the Indenture; (iii) exercise any right to rescind or annul a declaration
that the principal of all the Debentures shall be due and payable; or (iv)
consent to any amendment, modification or termination of the Indenture or the
Debentures, where such consent shall be required, without, in each case,
obtaining the prior approval of the Holders of at least a Majority in
liquidation amount of the Outstanding Capital Securities; PROVIDED, HOWEVER,
that where a consent under the Indenture would require the consent of each
Holder of Outstanding Debentures affected thereby, no such consent shall be
given by the Property Trustee without the prior written consent of each Holder
of Capital Securities. The Trustees shall not revoke any action previously
authorized or approved by a vote of the Holders of the Outstanding Capital
Securities, except by a subsequent vote of the Holders of the Outstanding
Capital Securities. The Property Trustee shall notify each Holder of the
Outstanding Capital Securities of any notice of default received from the
Debenture Trustee with respect to the Debentures. In addition to obtaining the
foregoing approvals of the Holders of the Capital Securities, prior to taking
any of the foregoing actions, the Trustees shall, at the expense of the
Depositor, obtain an Opinion of Counsel experienced in such matters to the
effect that the Trust shall continue to be classified as a grantor trust and not
as an association taxable as a corporation for United States federal income tax
purposes on account of such action.

     (c) If any proposed amendment to the Trust Agreement provides for, or the
Trustees otherwise propose to effect, (i) any action that would adversely affect
in any material respect the powers, preferences or special rights of the Capital
Securities, whether by way of amendment to the Trust Agreement or otherwise; or
(ii) the dissolution, winding-up or termination of the Trust, other than
pursuant to the terms of this Trust Agreement, then the Holders of Outstanding
Capital Securities as a class shall be entitled to vote on such amendment or
proposal and such amendment or proposal shall not be effective except with the
approval of the Holders of at least a Majority in liquidation amount of the
Outstanding Capital Securities. No amendment to this Trust Agreement may be made
if, as a result of such amendment, the Trust would cease to be classified as a
grantor trust or would be classified as an association taxable as a corporation
for United States federal income tax purposes.

                                       27
<PAGE>

SECTION 602.  NOTICE OF MEETINGS.

     Notice of all meetings of the Capital Securityholders, stating the time,
place and purpose of the meeting, shall be given by the Property Trustee
pursuant to Section 1008 to each Capital Securityholder of record, at his
registered address, at least 15 days and not more than 90 days before the
meeting. At any such meeting, any business properly before the meeting may be so
considered whether or not stated in the notice of the meeting. Any adjourned
meeting may be held as adjourned without further notice.

SECTION 603.  MEETINGS OF CAPITAL SECURITYHOLDERS.

     (a) No annual meeting of Securityholders is required to be held. The
Administrative Trustees, however, shall call a meeting of Securityholders to
vote on any matter in respect of which Capital Securityholders are entitled to
vote upon the written request of the Capital Securityholders of 25% of the
Outstanding Capital Securities (based upon their aggregate Liquidation Amount)
and the Administrative Trustees or the Property Trustee may, at any time in
their discretion, call a meeting of Capital Securityholders to vote on any
matters as to which the Capital Securityholders are entitled to vote.

     (b) Capital Securityholders of record of 33% of the Outstanding Capital
Securities (based upon their aggregate Liquidation Amount), present in person or
by proxy, shall constitute a quorum at any meeting of Securityholders.

     (c) If a quorum is present at a meeting, an affirmative vote by the Capital
Securityholders of record present, in person or by proxy, holding more than a
majority of the Capital Securities (based upon their aggregate Liquidation
Amount) held by the Capital Securityholders of record present, either in person
or by proxy, at such meeting shall constitute the action of the Securityholders,
unless this Trust Agreement requires a greater number of affirmative votes.

SECTION 604.  VOTING RIGHTS.

     Securityholders shall be entitled to one vote for each $10 of Liquidation
Amount represented by their Trust Securities (with any fractional multiple
thereof rounded up or down as the case may be to the closest integral multiple)
in respect of any matter as to which such Securityholders are entitled to vote.

SECTION 605.  PROXIES, ETC.

     At any meeting of Securityholders, any Securityholder entitled to vote
thereat may vote by proxy, provided that no proxy shall be voted at any meeting
unless it shall have been placed on file with the Administrative Trustees, or
with such other officer or agent of the Trust as the Administrative Trustees may
direct, for verification prior to the time at which such vote shall be taken.
Only Holders of record shall be entitled to vote. When Trust Securities are held
jointly by several Persons, any one of them may vote at any meeting in person or
by proxy in respect of such Trust Securities, but if more than one of them shall
be present at such meeting in person or by proxy, and such joint owners or their
proxies so present disagree as to any vote to be cast, such vote shall

                                       28
<PAGE>

not be received in respect of such Trust Securities. A proxy purporting to be
executed by or on behalf of a Securityholder shall be deemed valid unless
challenged at or prior to its exercise, and, the burden of proving invalidity
shall rest on the challenger. No proxy shall be valid more than three years
after its date of execution.

SECTION 606.  SECURITYHOLDER ACTION BY WRITTEN CONSENT.

     Any action which may be taken by Securityholders at a meeting may be taken
without a meeting and without prior notice if Securityholders holding a majority
of all Outstanding Trust Securities (based upon their aggregate Liquidation
Amount) entitled to vote in respect of such action (or such larger proportion
thereof as shall be required by any express provision of this Trust Agreement)
shall consent to the action in writing (based upon their aggregate Liquidation
Amount).

SECTION 607.   RECORD DATE FOR VOTING AND OTHER PURPOSES.

     For the purposes of determining the Securityholders who are entitled to
notice of and to vote at any meeting or by written consent, or to participate in
any Distribution on the Trust Securities in respect of which a record date is
not otherwise provided for in this Trust Agreement, or for the purpose of any
other action, the Administrative Trustees or the Property Trustee may from time
to time fix a date, not more than 90 days prior to the date of any meeting of
Securityholders or the payment of Distribution or other action, as the case may
be, as a record date for the determination of the identity of the
Securityholders of record for such purposes.

SECTION 608.  ACTS OF SECURITYHOLDERS.

     (a) Any request, demand, authorization, direction, notice, consent, waiver
or other action provided or permitted by this Trust Agreement to be given, made
or taken by Securityholders may be embodied in and evidenced by one or more
instruments of substantially similar tenor signed by such Securityholders in
person or by an agent duly appointed in writing; and, except as otherwise
expressly provided herein, such action shall become effective when such
instrument or instruments are delivered to an Administrative Trustee. Such
instrument or instruments (and the action embodied therein and evidenced
thereby) are herein sometimes referred to as the "Act" of the Securityholders
signing such instrument or instruments. Proof of execution of any such
instrument or of a writing appointing any such agent shall be sufficient for any
purpose of this Trust Agreement and (subject to Section 801) conclusive in favor
of the Trustees, if made in the manner provided in this Section 608.

     (b) The fact and date of the execution by any Person of any such instrument
or writing may be proved by the affidavit of a witness of such execution or by a
certificate of a notary public or other officer authorized by law to take
acknowledgments of deeds, certifying that the individual signing such instrument
or writing acknowledged to him the execution thereof. Where such execution is by
a signer acting in a capacity other than his individual capacity, such
certificate or affidavit shall also constitute sufficient proof of his
authority. The fact and date of the execution of any such instrument or writing,
or the authority of the Person executing the same, may also be proved in any
other manner which any Trustee receiving the same deems sufficient.

                                       29
<PAGE>

     (c) The ownership of Capital Securities shall be proved by the Securities
Register.

     (d) Any request, demand, authorization, direction, notice, consent, waiver
or other Act of the Securityholder of any Trust Security shall bind every future
Securityholder of the same Trust Security and the Securityholder of every Trust
Security issued upon the registration of transfer thereof or in exchange
therefor or in lieu thereof in respect of anything done, omitted or suffered to
be done by the Trustees or the Trust in reliance thereon, whether or not
notation of such action is made upon such Trust Security.

     (e) Without limiting the foregoing, a Securityholder entitled hereunder to
take any action hereunder with regard to any particular Trust Security may do so
with regard to all or any part of the Liquidation Amount of such Trust Security
or by one or more duly appointed agents each of which may do so pursuant to such
appointment with regard to all or any part of such Liquidation Amount.

     (f) A Securityholder may institute a legal proceeding directly against the
Depositor under the Guarantee to enforce its rights under the Guarantee without
first instituting a legal proceeding against the Guarantee Trustee (as defined
in the Guarantee), the Trust or any Person.

SECTION 609.  INSPECTION OF RECORDS.

     Upon reasonable notice to the Administrative Trustees and the Property
Trustee, the records of the Trust shall be open to inspection at the principal
executive office of the Trust (as indicated in Section 202) by record holders of
the Trust Securities during normal business hours for any purpose reasonably
related to such record holder's interest as a record holder.

                                  ARTICLE VII

                        REPRESENTATIONS AND WARRANTIES

SECTION 701.  REPRESENTATIONS AND WARRANTIES OF THE BANK AND
              THE PROPERTY TRUSTEE.

     The Bank and the Property Trustee, each severally on behalf of and as to
itself, as of the date hereof, and each Successor Property Trustee at the time
of the Successor Property Trustee's acceptance of its appointment as Property
Trustee hereunder (in the case of a Successor Property Trustee, the term "Bank"
as used herein shall be deemed to refer to such Successor Property Trustee in
its separate corporate capacity), hereby represents and warrants (as applicable)
for the benefit of the Depositor and the Securityholders that:

     (a) the Bank is a national banking association with its principal place of
business in the State of Delaware or, with respect to a Successor Property
Trustee, a state chartered bank and trust company; duly organized, validly
existing and in good standing under the laws of the State of Delaware;

                                       30
<PAGE>

     (b) the Bank has full corporate power, authority and legal right to
execute, deliver and perform its obligations under this Trust Agreement and has
taken all necessary action to authorize the execution, delivery and performance
by it of this Trust Agreement;

     (c) this Trust Agreement has been duly authorized, executed and delivered
by the Property Trustee and constitutes the valid and legally binding agreement
of the Property Trustee enforceable against it in accordance with its terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability relating to or affecting
creditors, rights and to general equity principles;

     (d) the execution, delivery and performance by the Property Trustee of this
Trust Agreement has been duly authorized by all necessary corporate or other
action on the part of the Property Trustee and does not require any approval of
stockholders of the Bank and such execution, delivery and performance shall not
(i) violate the Bank's charter or by-laws; (ii) violate any provision of, or
constitute, with or without notice or lapse of time, a default under, or result
in the creation or imposition of, any Lien on any properties included in the
Trust Property pursuant to the provisions of, any indenture, mortgage, credit
agreement, license or other agreement or instrument to which the Property
Trustee or the Bank is a party or by which it is bound; or (iii) violate any
law, governmental rule or regulation of the United States or the State of
Delaware, as the case may be, governing the banking or trust powers of the Bank
or the Property Trustee (as appropriate in context) or any order, judgment or
decree applicable to the Property Trustee or the Bank;

     (e) neither the authorization, execution or delivery by the Property
Trustee of this Trust Agreement nor the consummation of any of the transactions
by the Property Trustee contemplated herein or therein requires the consent or
approval of, the giving of notice to, the registration with or the taking of any
other action with respect to any governmental authority or agency under any
existing federal law governing the banking or trust powers of the Bank or the
Property Trustee, as the case may be, under the laws of the United States or the
State of Delaware, other than the filing of a Certificate of Trust with the
Secretary of State of the State of Delaware;

     (f) there are no proceedings pending or, to the best of the Property
Trustee's knowledge, threatened against or affecting the Bank or the Property
Trustee in any court or before any governmental authority, agency or arbitration
board or tribunal which, individually or in the aggregate, would materially and
adversely affect the Trust or would question the right, power and authority of
the Property Trustee to enter into or perform its obligations as one of the
Trustees under this Trust Agreement; and

     (g) the Property Trustee is a Person eligible pursuant to the Trust
Indenture Act to act as such and has a combined capital and surplus of at least
$50,000,000.

SECTION 702.  REPRESENTATIONS AND WARRANTIES OF THE DELAWARE
              BANK AND THE DELAWARE TRUSTEE.

     The Delaware Bank and the Delaware Trustee, each severally on behalf of and
as to itself, as of the date hereof, and each Successor Delaware Trustee at the
time of the Successor Delaware Trustee's acceptance of appointment as Delaware
Trustee hereunder (the term "Delaware Bank"

                                       31
<PAGE>

being used to refer to such Successor Delaware Trustee in its separate corporate
capacity), hereby represents and warrants (as applicable) for the benefit of the
Depositor and the Securityholders that:

     (a) the Delaware Bank is a national banking association with its principal
place of business in the State of Delaware, or, if a Successor Delaware Trustee,
is a Delaware banking corporation duly organized, validly existing and in good
standing under the laws of the State of Delaware;

     (b) the Delaware Bank has full corporate power, authority and legal right
to execute, deliver and perform its obligations under this Trust Agreement and
has taken all necessary action to authorize the execution, delivery and
performance by it of this Trust Agreement;

     (c) this Trust Agreement has been duly authorized, executed and delivered
by the Delaware Trustee and constitutes the valid and legally binding agreement
of the Delaware Trustee enforceable against it in accordance with its terms,
subject to bankruptcy, insolvency, fraudulent transfer, reorganization,
moratorium and similar laws of general applicability relating to or affecting
creditors, rights and to general equity principles;

     (d) the execution, delivery and performance by the Delaware Trustee of this
Trust Agreement has been duly authorized by all necessary corporate or other
action on the part of the Delaware Trustee and does not require any approval of
stockholders of the Delaware Bank and such execution, delivery and performance
shall not (i) violate the Delaware Bank's charter or by-laws; (ii) violate any
provision of, or constitute, with or without notice or lapse of time, a default
under, or result in the creation or imposition of, any Lien on any properties
included in the Trust Property pursuant to the provisions of, any indenture,
mortgage, credit agreement, license or other agreement or instrument to which
the Delaware Bank or the Delaware Trustee is a party or by which it is bound; or
(iii) violate any law, governmental rule or regulation of the United States or
the State of Delaware, as the case may be, governing the banking or trust powers
of the Delaware Bank or the Delaware Trustee (as appropriate in context) or any
order, judgment or decree applicable to the Delaware Bank or the Delaware
Trustee;

     (e) neither the authorization, execution or delivery by the Delaware
Trustee of this Trust Agreement nor the consummation of any of the transactions
by the Delaware Trustee contemplated herein or therein requires the consent or
approval of, the giving of notice to, the registration with or the taking of any
other action with respect to any governmental authority or agency under any
existing federal law governing the banking or trust powers of the Delaware Bank
or the Delaware Trustee, as the case may be, under the laws of the United States
or the State of Delaware, other than the filing of the Certificate of Trust with
the Secretary of State of the State of Delaware; and

     (f) there are no proceedings pending or, to the best of the Delaware
Trustee's knowledge, threatened against or affecting the Delaware Bank or the
Delaware Trustee in any court or before any governmental authority, agency or
arbitration board or tribunal which, individually or in the aggregate, would
materially and adversely affect the Trust or would question the right, power and
authority of the Delaware Trustee to enter into or perform its obligations as
one of the Trustees under this Trust Agreement.

                                       32
<PAGE>

SECTION 703.  REPRESENTATIONS AND WARRANTIES OF DEPOSITOR.

     The Depositor hereby represents and warrants for the benefit of the
Securityholders that:

     (a) the Trust Securities Certificates issued on the Closing Date on behalf
of the Trust have been duly authorized and, shall have been, duly and validly
executed, issued and delivered by the Administrative Trustees pursuant to the
terms and provisions of, and in accordance with the requirements of, this Trust
Agreement and the Securityholders shall be, as of such date, entitled to the
benefits of this Trust Agreement; and

     (b) there are no taxes, fees or other governmental charges payable by the
Trust (or the Trustees on behalf of the Trust) under the laws of the State of
Delaware or any political subdivision thereof in connection with the execution,
delivery and performance by the Bank, the Property Trustee or the Delaware
Trustee, as the case may be, of this Trust Agreement.

                                 ARTICLE VIII

                                   TRUSTEES

SECTION 801.  CERTAIN DUTIES AND RESPONSIBILITIES.

     (a) The duties and responsibilities of the Trustees shall be as provided by
this Trust Agreement and, in the case of the Property Trustee, by the Trust
Indenture Act. Notwithstanding the foregoing, no provision of this Trust
Agreement shall require the Trustees to expend or risk their own funds or
otherwise incur any financial liability in the performance of any of their
duties hereunder, or in the exercise of any of their rights or powers, if they
shall have reasonable grounds for believing that repayment of such funds or
adequate indemnity against such risk or liability is not reasonably assured to
it.  None of the Administrative Trustees or the Delaware Trustee shall be liable
for their acts or omissions hereunder except as a result of their own gross
negligence or bad faith or willful misconduct. The Property Trustee's liability
shall be determined under the Trust Indenture Act. Whether or not therein
expressly so provided, every provision of this Trust Agreement relating to the
conduct or affecting the liability of or affording protection to the Trustees
shall be subject to the provisions of this Section 801. To the extent that, at
law or in equity, an Administrative Trustee has duties (including fiduciary
duties) and liabilities relating thereto to the Trust or to the Securityholders,
such Administrative Trustee shall not be liable to the Trust or to any
Securityholder for such Trustee's good faith reliance on the provisions of this
Trust Agreement. The provisions of this Trust Agreement, to the extent that they
restrict the duties and liabilities of the Administrative Trustees otherwise
existing at law or in equity, are agreed by the Depositor and the
Securityholders to replace such other duties and liabilities of the
Administrative Trustees.

     (b) All payments made by the Property Trustee or a Paying Agent in respect
of the Trust Securities shall be made only from the revenue and proceeds from
the Trust Property and only to the extent that there shall be sufficient revenue
or proceeds from the Trust Property to enable the Property Trustee or a Paying
Agent to make payments in accordance with the terms hereof. Each Securityholder,
by its acceptance of a Trust Security, agrees that it shall look solely to the
revenue

                                       33
<PAGE>

and proceeds from the Trust Property to the extent legally available for
distribution to it as herein provided and that the Trustees are not personally
liable to it for any amount distributable in respect of any Trust Security or
for any other liability in respect of any Trust Security. This Section 801(b)
does not limit the liability of the Trustees expressly set forth elsewhere in
this Trust Agreement or, in the case of the Property Trustee, in the Trust
Indenture Act.

     (c)  No provision of this Trust Agreement shall be construed to relieve the
Property Trustee from liability for its own negligent action, its own negligent
failure to act, or its own willful misconduct, except that:

          (i)   the Property Trustee shall not be liable for any error of
          judgment made in good faith by an authorized officer of the Property
          Trustee, unless it shall be proved that the Property Trustee was
          negligent in ascertaining the pertinent facts;

          (ii)  the Property Trustee shall not be liable with respect to any
          action taken or omitted to be taken by it in good faith in accordance
          with the direction of the Holders of not less than a majority in
          Liquidation Amount of the Trust Securities relating to the time,
          method and place of conducting any proceeding for any remedy available
          to the Property Trustee, or exercising any trust or power conferred
          upon the Property Trustee under this Trust Agreement;

          (iii) the Property Trustee's sole duty with respect to the custody,
          safe keeping and physical preservation of the Debentures and the
          Payment Account shall be to deal with such Property in a similar
          manner as the Property Trustee deals with similar property for its own
          account, subject to the protections and limitations on liability
          afforded to the Property Trustee under this Trust Agreement and the
          Trust Indenture Act;

          (iv)  the Property Trustee shall not be liable for any interest on any
          money received by it except as it may otherwise agree with the
          Depositor and money held by the Property Trustee need not be
          segregated from other funds held by it except in relation to the
          Payment Account maintained by the Property Trustee pursuant to Section
          301 and except to the extent otherwise required by law; and

          (v)   the Property Trustee shall not be responsible for monitoring the
          compliance by the Administrative Trustees or the Depositor with their
          respective duties under this Trust Agreement, nor shall the Property
          Trustee be liable for the negligence, default or misconduct of the
          Administrative Trustees or the Depositor.

SECTION 802.  CERTAIN NOTICES.

     (a) Within five Business Days after the occurrence of any Event of Default
actually known to the Property Trustee, the Property Trustee shall transmit, in
the manner and to the extent provided in Section 1008, notice of such Event of
Default to the Securityholders, the Administrative Trustees and the Depositor,
unless such Event of Default shall have been cured or waived. For

                                       34
<PAGE>

purposes of this Section 802 the term "Event of Default" means any event that
is, or after notice or lapse of time or both would become, an Event of Default.

     (b) The Administrative Trustees shall transmit, to the Securityholders in
the manner and to the extent provided in Section 1008, notice of the Depositor's
election to begin or further extend an Extended Interest Payment Period on the
Debentures (unless such election shall have been revoked) within the time
specified for transmitting such notice to the holders of the Debentures pursuant
to the Indenture as originally executed.

SECTION 803.  CERTAIN RIGHTS OF PROPERTY TRUSTEE.

     Subject to the provisions of Section 801:

     (a) the Property Trustee may rely and shall be protected in acting or
refraining from acting in good faith upon any resolution, Opinion of Counsel,
certificate, written representation of a Holder or transferee, certificate of
auditors or any other certificate, statement, instrument, opinion, report,
notice, request, consent, order, appraisal, bond, debenture, note, other
evidence of indebtedness or other paper or document believed by it to be genuine
and to have been signed or presented by the proper party or parties;

     (b) if (i) in performing its duties under this Trust Agreement the Property
Trustee is required to decide between alternative courses of action; or (ii) in
construing any of the provisions of this Trust Agreement the Property Trustee
finds the same ambiguous or inconsistent with other provisions contained herein;
or (iii) the Property Trustee is unsure of the application of any provision of
this Trust Agreement, then, except as to any matter as to which the Capital
Securityholders are entitled to vote under the terms of this Trust Agreement,
the Property Trustee shall deliver a notice to the Depositor requesting written
instructions of the Depositor as to the course of action to be taken and the
Property Trustee shall take such action, or refrain from taking such action, as
the Property Trustee shall be instructed in writing to take, or to refrain from
taking, by the Depositor; provided, however, that if the Property Trustee does
not receive such instructions of the Depositor within 10 Business Days after it
has delivered such notice, or such reasonably shorter period of time set forth
in such notice (which to the extent practicable shall not be less than 2
Business Days), it may, but shall be under no duty to, take or refrain from
taking such action not inconsistent with this Trust Agreement as it shall deem
advisable and in the best interests of the Securityholders, in which event the
Property Trustee shall have no liability except for its own bad faith,
negligence or willful misconduct;

     (c) any direction or act of the Depositor or the Administrative Trustees
contemplated by this Trust Agreement shall be sufficiently evidenced by an
Officers' Certificate;

     (d) whenever in the administration of this Trust Agreement, the Property
Trustee shall deem it desirable that a matter be established before undertaking,
suffering or omitting any action hereunder, the Property Trustee (unless other
evidence is herein specifically prescribed) may, in the absence of bad faith on
its part, request and conclusively rely upon an Officer's Certificate which,
upon receipt of such request, shall be promptly delivered by the Depositor or
the Administrative Trustees;

                                       35
<PAGE>

     (e) the Property Trustee shall have no duty to see to any recording, filing
or registration of any instrument (including any financing or continuation
statement or any filing under tax or securities laws) or any rerecording,
refiling or reregistration thereof;

     (f) the Property Trustee may consult with counsel of its choice (which
counsel may be counsel to the Depositor or any of its Affiliates) and the advice
of such counsel shall be full and complete authorization and protection in
respect of any action taken, suffered or omitted by it hereunder in good faith
and in reliance thereon and, in accordance with such advice, the Property
Trustee shall have the right at any time to seek instructions concerning the
administration of this Trust Agreement from any court of competent jurisdiction;

     (g) the Property Trustee shall be under no obligation to exercise any of
the rights or powers vested in it by this Trust Agreement at the request or
direction of any of the Securityholders pursuant to this Trust Agreement, unless
such Securityholders shall have offered to the Property Trustee reasonable
security or indemnity against the costs, expenses and liabilities which might be
incurred by it in compliance with such request or direction;

     (h) the Property Trustee shall not be bound to make any investigation into
the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, consent, order, approval, bond,
debenture, note or other evidence of indebtedness or other paper or document,
unless requested in writing to do so by one or more Securityholders, but the
Property Trustee may make such further inquiry or investigation into such facts
or matters as it may see fit;

     (i) the Property Trustee may execute any of the trusts or powers hereunder
or perform any duties hereunder either directly or by or through its agents or
attorneys, provided that the Property Trustee shall be responsible for its own
negligence or recklessness with respect to selection of any agent or attorney
appointed by it hereunder;

     (j) whenever in the administration of this Trust Agreement the Property
Trustee shall deem it desirable to receive instructions with respect to
enforcing any remedy or right or taking any other action hereunder the Property
Trustee (i) may request instructions from the Holders of the Trust Securities
which instructions may only be given by the Holders of the same proportion in
Liquidation Amount of the Trust Securities as would be entitled to direct the
Property Trustee under the terms of the Trust Securities in respect of such
remedy, right or action; (ii) may refrain from enforcing such remedy or right or
taking such other action until such instructions are received; and (iii) shall
be protected in acting in accordance with such instructions; and

     (k) except as otherwise expressly provided by this Trust Agreement, the
Property Trustee shall not be under any obligation to take any action that is
discretionary under the provisions of this Trust Agreement. No provision of this
Trust Agreement shall be deemed to impose any duty or obligation on the Property
Trustee to perform any act or acts or exercise any right, power, duty or
obligation conferred or imposed on it, in any jurisdiction in which it shall be
illegal, or in which the Property Trustee shall be unqualified or incompetent in
accordance with applicable law, to perform any such act or acts, or to exercise
any such right, power, duty or obligation. No permissive power or authority
available to the Property Trustee shall be construed to be a duty.

                                       36
<PAGE>

SECTION 804.  NOT RESPONSIBLE FOR RECITALS OR ISSUANCE
              OF SECURITIES.

     The Recitals contained herein and in the Trust Securities Certificates
shall be taken as the statements of the Trust, and the Trustees do not assume
any responsibility for their correctness. The Trustees shall not be accountable
for the use or application by the Depositor of the proceeds of the Debentures.

SECTION 805.  MAY HOLD SECURITIES.

     Any Trustee or any other agent of any Trustee or the Trust, in its
individual or any other capacity, may become the owner or pledgee of Trust
Securities and, subject to Sections 808 and 813 and except as provided in the
definition of the term "Outstanding" in Article I, may otherwise deal with the
Trust with the same rights it would have if it were not a Trustee or such other
agent.

SECTION 806.  COMPENSATION; INDEMNITY; FEES.

     The Depositor agrees:

     (a) to pay to the Trustees from time to time compensation for all services
rendered by them hereunder (which compensation shall not be limited by any
provision of law in regard to the compensation of a trustee of an express
trust); in the case of the Property Trustee, as set forth in a written agreement
between the Depositor and the Property Trustee;

     (b) except as otherwise expressly provided herein, to reimburse the
Trustees upon request for all reasonable expenses, disbursements and advances
incurred or made by the Trustees in accordance with any provision of this Trust
Agreement (including the reasonable compensation and the expenses and
disbursements of its agents and counsel), except any such expense, disbursement
or advance as may be attributable to such Trustee's negligence, bad faith or
willful misconduct (or, in the case of the Administrative Trustees or the
Delaware Trustee, any such expense, disbursement or advance as may be
attributable to his, her or its gross negligence, bad faith or willful
misconduct); and

     (c) to indemnify each of the Trustees or any predecessor Trustee for, and
to hold the Trustees harmless against, any loss, damage, claims, liability,
penalty or expense of any kind or nature whatsoever, arising out of or in
connection with the acceptance or administration of this Trust Agreement,
including the costs and expenses of defending itself against any claim or
liability in connection with the exercise or performance of any of its powers or
duties hereunder, except any such expense, disbursement or advance as may be
attributable to such Trustee's negligence, bad faith or willful misconduct (or,
in the case of the Administrative Trustees or the Delaware Trustee, any such
expense, disbursement or advance as may be attributable to his, her or its gross
negligence, bad faith or willful misconduct).

                                       37
<PAGE>

SECTION 807.  CORPORATE PROPERTY TRUSTEE REQUIRED; ELIGIBILITY
              OF TRUSTEES.

     (a) There shall at all times be a Property Trustee hereunder with respect
to the Trust Securities.  The Property Trustee and the Delaware Trustee may be
the same Person.  The Property Trustee shall be a Person that is eligible
pursuant to the Trust Indenture Act to act as such and has a combined capital
and surplus of at least $50,000,000. If any such Person publishes reports of
condition at least annually, pursuant to law or to the requirements of its
supervising or examining authority, then for the purposes of this Section 807,
the combined capital and surplus of such Person shall be deemed to be its
combined capital and surplus as set forth in its most recent report of condition
so published. If at any time the Property Trustee with respect to the Trust
Securities shall cease to be eligible in accordance with the provisions of this
Section 807, it shall resign immediately in the manner and with the effect
hereinafter specified in this Article VIII.

     (b) There shall at all times be one or more Administrative Trustees
hereunder with respect to the Trust Securities. Each Administrative Trustee
shall be either a natural person who is at least 21 years of age or a legal
entity that shall act through one or more persons authorized to bind that
entity.

     (c) There shall at all times be a Delaware Trustee with respect to the
Trust Securities. The Delaware Trustee shall either be (i) a natural person who
is at least 21 years of age and a resident of the State of Delaware; or (ii) a
legal entity with its principal place of business in the State of Delaware and
that otherwise meets the requirements of applicable Delaware law that shall act
through one or more persons authorized to bind such entity.

SECTION 808.  CONFLICTING INTERESTS.

     If the Property Trustee has or shall acquire a conflicting interest within
the meaning of the Trust Indenture Act, the Property Trustee shall either
eliminate such interest or resign, to the extent and in the manner provided by,
and subject to the provisions of, the Trust Indenture Act and this Trust
Agreement.

SECTION 809.  CO-TRUSTEES AND SEPARATE TRUSTEE.

     (a) Unless an Event of Default shall have occurred and be continuing, at
any time or times, for the purpose of meeting the legal requirements of the
Trust Indenture Act or of any jurisdiction in which any part of the Trust
Property may at the time be located, the Depositor shall have power to appoint,
and upon the written request of the Property Trustee, the Depositor shall for
such purpose join with the Property Trustee in the execution, delivery and
performance of all instruments and agreements necessary or proper to appoint,
one or more Persons approved by the Property Trustee either to act as co-
trustee, jointly with the Property Trustee, of all or any part of such Trust
Property, or to the extent required by law to act as separate trustee of any
such property, in either case with such powers as may be provided in the
instrument of appointment, and to vest in such Person or Persons in the capacity
aforesaid, any property, title, right or power deemed necessary or desirable,
subject to the other provisions of this Section 809. If the Depositor does not
join in such appointment within 15 days after the receipt by it of a request to
do so, or in case a Debenture Event

                                       38
<PAGE>

of Default has occurred and is continuing, the Property Trustee alone shall have
power to make such appointment. Any co-trustee or separate trustee appointed
pursuant to this Section 809 shall either be (i) a natural person who is at
least 21 years of age and a resident of the United States; or (ii) a legal
entity with its principal place of business in the United States that shall act
through one or more persons authorized to bind such entity.

     (b) Should any written instrument from the Depositor be required by any co-
trustee or separate trustee so appointed for more fully confirming to such co-
trustee or separate trustee such property, title, right, or power, any and all
such instruments shall, on request, be executed, acknowledged, and delivered by
the Depositor.

     (c) Every co-trustee or separate trustee shall, to the extent permitted by
law, but to such extent only, be appointed subject to the following terms,
namely:

         (i)   The Trust Securities shall be executed and delivered and all
         rights, powers, duties and obligations hereunder in respect of the
         custody of securities, cash and other personal property held by, or
         required to be deposited or pledged with, the Trustees specified
         hereunder, shall be exercised, solely by such Trustees and not by such
         co-trustee or separate trustee.

         (ii)  The rights, powers, duties and obligations hereby conferred or
         imposed upon the Property Trustee in respect of any property covered by
         such appointment shall be conferred or imposed upon and exercised or
         performed by the Property Trustee or by the Property Trustee and such
         co-trustee or separate trustee jointly, as shall be provided in the
         instrument appointing such co-trustee or separate trustee, except to
         the extent that under any law of any jurisdiction in which any
         particular act is to be performed, the Property Trustee shall be
         incompetent or unqualified to perform such act, in which event such
         rights, powers, duties and obligations shall be exercised and performed
         by such co-trustee or separate trustee.

         (iii) The Property Trustee at any time, by an instrument in writing
         executed by it, with the written concurrence of the Depositor, may
         accept the resignation of or remove any co-trustee or separate trustee
         appointed under this Section 809, and, in case a Debenture Event of
         Default has occurred and is continuing, the Property Trustee shall have
         the power to accept the resignation of, or remove, any such co-trustee
         or separate trustee without the concurrence of the Depositor. Upon the
         written request of the Property Trustee, the Depositor shall join with
         the Property Trustee in the execution, delivery and performance of all
         instruments and agreements necessary or proper to effectuate such
         resignation or removal. A successor to any co-trustee or separate
         trustee so resigned or removed may be appointed in the manner provided
         in this Section 809.

         (iv)  No co-trustee or separate trustee hereunder shall be personally
         liable by reason of any act or omission of the Property Trustee or any
         other trustee hereunder.

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<PAGE>

         (v)   The Property Trustee shall not be liable by reason of any act of
         a co-trustee or separate trustee.

         (vi)  Any Act of Holders delivered to the Property Trustee shall be
         deemed to have been delivered to each such co-trustee and separate
         trustee.

SECTION 810.  RESIGNATION AND REMOVAL; APPOINTMENT
               OF SUCCESSOR.

     (a) No resignation or removal of any Trustee (the "Relevant Trustee") and
no appointment of a successor Trustee pursuant to this Article VIII shall become
effective until the acceptance of appointment by the successor Trustee in
accordance with the applicable requirements of Section 811.

     (b) Subject to the immediately preceding paragraph, the Relevant Trustee
may resign at any time with respect to the Trust Securities by giving written
notice thereof to the Securityholders. If the instrument of acceptance by the
successor Trustee required by Section 811 shall not have been delivered to the
Relevant Trustee within 30 days after the giving of such notice of resignation,
the Relevant Trustee may petition, at the expense of the Depositor, any court of
competent jurisdiction or the appointment of a successor Relevant Trustee with
respect to the Trust Securities.

     (c) Unless a Debenture Event of Default shall have occurred and be
continuing, any Trustee may be removed at any time by Act of the Common
Securityholder. If a Debenture Event of Default shall have occurred and be
continuing, the Property Trustee or the Delaware Trustee, or both of them, may
be removed at such time by Act of the Holders of a Majority in liquidation
amount of the Outstanding Capital Securities, delivered to the Relevant Trustee
(in its individual capacity and on behalf of the Trust). An Administrative
Trustee may be removed by the Common Securityholder at any time.

     (d) If any Trustee shall resign, be removed or become incapable of acting
as Trustee, or if a vacancy shall occur in the office of any Trustee for any
cause, at a time when no Debenture Event of Default shall have occurred and be
continuing, the Common Securityholder, by Act of the Common Securityholder
delivered to the retiring Trustee, shall promptly appoint a successor Trustee or
Trustees with respect to the Trust Securities and the Trust, and the successor
Trustee shall comply with the applicable requirements of Section 811. If the
Property Trustee or the Delaware Trustee shall resign, be removed or become
incapable of continuing to act as the Property Trustee or the Delaware Trustee,
as the case may be, at a time when a Debenture Event of Default shall have
occurred and is continuing, the Capital Securityholders, by Act of the
Securityholders of a Majority in liquidation amount of the Outstanding Capital
Securities delivered to the retiring Relevant Trustee, shall promptly appoint a
successor Relevant Trustee or Trustees with respect to the Trust Securities and
the Trust, and such successor Trustee shall comply with the applicable
requirements of Section 811. If an Administrative Trustee shall resign, be
removed or become incapable of acting as Administrative Trustee, at a time when
a Debenture Event of Default shall have occurred and be continuing, the Common
Securityholder, by Act of the Common Securityholder delivered to an
Administrative Trustee, shall promptly appoint a successor Administrative
Trustee or Administrative Trustees with respect to the Trust Securities and the
Trust, and such successor Administrative

                                       40
<PAGE>

Trustee or Administrative Trustees shall comply with the applicable requirements
of Section 811. If no successor Relevant Trustee with respect to the Trust
Securities shall have been so appointed by the Common Securityholder or the
Capital Securityholders and accepted appointment in the manner required by
Section 811, any Securityholder who has been a Securityholder of Trust
Securities on behalf of himself and all others similarly situated may petition a
court of competent jurisdiction for the appointment Trustee with respect to the
Trust Securities.

     (e) The Property Trustee shall give notice of each resignation and each
removal of a Trustee and each appointment of a successor Trustee to all
Securityholders in the manner provided in Section 1008 and shall give notice to
the Depositor. Each notice shall include the name of the successor Relevant
Trustee and the address of its Corporate Trust office if it is the Property
Trustee.

     (f) Notwithstanding the foregoing or any other provision of this Trust
Agreement, in the event any Administrative Trustee or a Delaware Trustee who is
a natural person dies or becomes, in the opinion of the Depositor, incompetent
or incapacitated, the vacancy created by such death, incompetence or incapacity
may be filled by (a) the unanimous act of remaining Administrative Trustees if
there are at least two of them; or (b) otherwise by the Depositor (with the
successor in each case being a Person who satisfies the eligibility requirement
for Administrative Trustees set forth in Section 807).

SECTION 811.  ACCEPTANCE OF APPOINTMENT BY SUCCESSOR.

     (a) In case of the appointment hereunder of a successor Relevant Trustee
with respect to the Trust Securities and the Trust, the retiring Relevant
Trustee and each successor Relevant Trustee with respect to the Trust Securities
shall execute and deliver an instrument hereto wherein each successor Relevant
Trustee shall accept such appointment and which shall contain such provisions as
shall be necessary or desirable to transfer and confirm to, and to vest in, each
successor Relevant Trustee all the rights, powers, trusts and duties of the
retiring Relevant Trustee with respect to the Trust Securities and the Trust and
upon the execution and delivery of such instrument the resignation or removal of
the retiring Relevant Trustee shall become effective to the extent provided
therein and each such successor Relevant Trustee, without any further act, deed
or conveyance, shall become vested with all the rights, powers, trusts and
duties of the retiring Relevant Trustee with respect to the Trust Securities and
the Trust; but, on request of the Trust or any successor Relevant Trustee such
retiring Relevant Trustee shall duly assign, transfer and deliver to such
successor Relevant Trustee all Trust Property, all proceeds thereof and money
held by such retiring Relevant Trustee hereunder with respect to the Trust
Securities and the Trust.

     (b) Upon request of any such successor Relevant Trustee, the Trust shall
execute any and all instruments for more fully and certainly vesting in and
confirming to such successor Relevant Trustee all such rights, powers and trusts
referred to in the immediately preceding paragraph, as the case may be.

     (c) No successor Relevant Trustee shall accept its appointment unless at
the time of such acceptance such successor Relevant Trustee shall be qualified
and eligible under this Article VIII.

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<PAGE>

SECTION 812.  MERGER, CONVERSION, CONSOLIDATION OR SUCCESSION
              TO BUSINESS.

     Any Person into which the Property Trustee, the Delaware Trustee or any
Administrative Trustee may be merged or converted or with which it may be
consolidated, or any Person resulting from any merger, conversion or
consolidation to which such Relevant Trustee shall be a party, or any
corporation succeeding to all or substantially all the corporate trust business
of such Relevant Trustee, shall be the successor of such Relevant Trustee
hereunder, provided such Person shall be otherwise qualified and eligible under
this Article VIII, without the execution or filing of any paper or any further
act on the part of any of the parties hereto.

SECTION 813.  PREFERENTIAL COLLECTION OF CLAIMS AGAINST
              DEPOSITOR OR TRUST.

     If and when the Property Trustee or the Delaware Trustee shall be or become
directly or indirectly a creditor of the Depositor or the Trust (or any other
obligor upon the Debentures or the Trust Securities), excluding any creditor
relationship described in Section 311(b) of the Trust Indenture Act, the
Property Trustee or the Delaware Trustee, as the case may be, shall be subject
to and shall take all actions necessary in order to comply with the provisions
of the Trust Indenture Act regarding the collection of claims against the
Depositor or Trust (or any such other obligor).

SECTION 814.  REPORTS BY PROPERTY TRUSTEE.

     (a) Not later than July 15 of each year commencing with July 15, 2000, the
Property Trustee shall transmit to all Securityholders in accordance with
Section 1008, and to the Depositor, a brief report dated as of May 15 with
respect to:

         (i)   its eligibility under Section 807 or, in lieu thereof, if to the
         best of its knowledge it has continued to be eligible under said
         Section, a written statement to such effect; and

         (ii)  any change in the property and funds in its possession as
         Property Trustee since the date of its last report and any action taken
         by the Property Trustee in the performance of its duties hereunder
         which it has not previously reported and which in its opinion
         materially affects the Trust Securities.

     (b) In addition, the Property Trustee shall transmit to Securityholders
such reports concerning the Property Trustee and its actions under this Trust
Agreement as may be required pursuant to the Trust Indenture Act at the times
and in the manner provided pursuant thereto.

     (c) A copy of each such report shall, at the time of such transmission to
Holders, be filed by the Property Trustee with the American Stock Exchange, and
each national securities exchange or other organization upon which the Trust
Securities are listed, and also with the Commission and the Depositor.

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<PAGE>

SECTION 815.  REPORTS TO THE PROPERTY TRUSTEE.

     The Depositor and the Administrative Trustees on behalf of the Trust shall
provide to the Property Trustee such documents, reports and information as
required by Section 314 of the Trust Indenture Act (if any) and the compliance
certificate required by Section 314(a) of the Trust Indenture Act in the form,
in the manner and at the times required by Section 314 of the Trust Indenture
Act.

SECTION 816.  EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT.

     Each of the Depositor and the Administrative Trustees on behalf of the
Trust shall provide to the Property Trustee (i) such evidence of compliance with
any conditions precedent, if any, provided for in this Trust Agreement that
relate to any of the matters set forth in Section 314(c) of the Trust Indenture
Act, consisting of an Officers' Certificate and an Opinion of Counsel each
containing the statements required by Sections 314(c) and 314(e) of the Trust
Indenture Act and (ii) such certificates required by Section 314(a)(4) of the
Trust Indenture Act.

SECTION 817.  NUMBER OF TRUSTEES.

     (a) The number of Trustees shall be five, provided that the Holder of all
of the Common Securities by written instrument may increase or decrease the
number of Administrative Trustees. The Property Trustee and the Delaware Trustee
may be the same Person.

     (b) If a Trustee ceases to hold office for any reason and the number of
Administrative Trustees is not reduced pursuant to Section 817(a), or if the
number of Trustees is increased pursuant to Section 817(a), a vacancy shall
occur. The vacancy shall be filled with a Trustee appointed in accordance with
Section 810.

     (c) The death, resignation, retirement, removal, bankruptcy, incompetence
or incapacity to perform the duties of a Trustee shall not operate to annul the
Trust. Whenever a vacancy in the number of Administrative Trustees shall occur,
until such vacancy is filled by the appointment of an Administrative Trustee in
accordance with Section 810, the Administrative Trustees in office, regardless
of their number (and notwithstanding any other provision of this Agreement),
shall have all the powers granted to the Administrative Trustees and shall
discharge all the duties imposed upon the Administrative Trustees by this Trust
Agreement.

SECTION 818.  DELEGATION OF POWER.

     (a) Any Administrative Trustee may, by power of attorney consistent with
applicable law, delegate to any other natural person over the age of 21 his or
her power for the purpose of executing any documents contemplated in Section
207(a); and

     (b) The Administrative Trustees shall have power to delegate from time to
time to such of their number or to the Depositor the doing of such things and
the execution of such instruments either in the name of the Trust or the names
of the Administrative Trustees or otherwise as the

                                       43
<PAGE>

Administrative Trustees may deem expedient, to the extent such delegation is not
prohibited by applicable law or contrary to the provisions of the Trust, as set
forth herein.

SECTION 819.  VOTING.

     Except as otherwise provided in this Trust Agreement, the consent or
approval of the Administrative Trustees shall require consent or approval by not
less than a majority of the Administrative Trustees, unless there are only two,
in which case both must consent.

                                  ARTICLE IX

                      TERMINATION, LIQUIDATION AND MERGER

SECTION 901.  TERMINATION UPON EXPIRATION DATE.

     Unless earlier dissolved, the Trust shall automatically dissolve on,
December 31, 2030 (the "Expiration Date") subject to distribution of the Trust
Property in accordance with Section 904.

SECTION 902.  EARLY TERMINATION.

     The first to occur of any of the following events is an "Early Termination
Event:"

     (a) the occurrence of a Bankruptcy Event in respect of, or the dissolution
or liquidation of, the Depositor;

     (b) delivery of written direction to the Property Trustee by the Depositor
at any time (which direction is wholly optional and within the discretion of the
Depositor, subject to Depositor having received prior approval of the Board of
Governors of the Federal Reserve System if so required under applicable
guidelines, policies or regulations thereof) to dissolve the Trust and
distribute the Debentures to Securityholders in exchange for the Capital
Securities in accordance with Section 904;

     (c) the redemption of all of the Capital Securities in connection with the
redemption of all of the Debentures (whether upon a Debenture Redemption Date or
the maturity of the Debentures); or

     (d) an order for dissolution of the Trust shall have been entered by a
court of competent jurisdiction.

SECTION 903.  TERMINATION.

     The respective obligations and responsibilities of the Trustees and the
Trust created and continued hereby shall terminate upon the latest to occur of
the following: (a) the distribution by the Property Trustee to Securityholders
upon the liquidation of the Trust pursuant to Section 904, or upon the
redemption of all of the Trust Securities pursuant to Section 402, of all
amounts required

                                       44
<PAGE>

to be distributed hereunder upon the final payment of the Trust Securities; (b)
the payment of any expenses owed by the Trust; (c) the discharge of all
administrative duties of the Administrative Trustees, including the performance
of any tax reporting obligations with respect to the Trust or the
Securityholders; and (d) the filing of a Certificate of Cancellation by the
Administrative Trustee under the Business Trust Act.

SECTION 904.  LIQUIDATION.

     (a) If an Early Termination Event specified in clause (a), (b), or (d) of
Section 902 occurs or upon the Expiration Date, the Trust shall be liquidated by
the Trustees as expeditiously as the Trustees determine to be possible by
distributing, after satisfaction of liabilities to creditors of the Trust as
provided by applicable law, to each Securityholder a Like Amount of Debentures,
subject to Section 904(d). Notice of liquidation shall be given by the Property
Trustee by first-class mail, postage prepaid, mailed not later than 30 nor more
than 60 days prior to the Liquidation Date to each Holder of Trust Securities at
such Holder's address appearing in the Securities Register. All notices of
liquidation shall:

         (i)   state the Liquidation Date;

         (ii)  state that from and after the Liquidation Date, the Trust
         Securities shall no longer be deemed to be Outstanding and any Trust
         Securities Certificates not surrendered for exchange shall be deemed to
         represent a Like Amount of Debentures; and

         (iii) provide such information with respect to the mechanics by which
         Holders may exchange Trust Securities Certificates for Debentures, or,
         if Section 904(d) applies, receive a Liquidation Distribution, as the
         Administrative Trustees or the Property Trustee shall deem appropriate.

     (b) Except where Section 902(c) or 904(d) applies, in order to effect the
liquidation of the Trust and distribution of the Debentures to Securityholders,
the Property Trustee shall establish a record date for such distribution (which
shall be not more than 45 days prior to the Liquidation Date) and, either itself
acting as exchange agent or through the appointment of a separate exchange
agent, shall establish such procedures as it shall deem appropriate to effect
the distribution of Debentures in exchange for the Outstanding Trust Securities
Certificates.

     (c) Except where Section 902(c) or 904(d) applies, after the Liquidation
Date, (i) the Trust Securities shall no longer be deemed to be Outstanding; (ii)
certificates representing a Like Amount of Debentures shall be issued to holders
of Trust Securities Certificates upon surrender of such certificates to the
Administrative Trustees or their agent for exchange; (iii) the Depositor shall
use its reasonable efforts to have the Debentures listed on the American Stock
Exchange or on such other securities exchange or other organization as the
Capital Securities are then listed or traded; (iv) any Trust Securities
Certificates not so surrendered for exchange shall be deemed to represent a Like
Amount of Debentures, accruing interest at the rate and for the period provided
for in the Debentures from the last Distribution Date on which a Distribution
was made on such Trust Securities Certificates until such certificates are so
surrendered (and until such certificates are so surrendered,

                                       45
<PAGE>

no payments of interest or principal shall be made to holders of Trust
Securities Certificates with respect to such Debentures); and (v) all rights of
Securityholders holding Trust Securities shall cease, except the right of such
Securityholders to receive Debentures upon surrender of Trust Securities
Certificates.

     (d) In the event that, notwithstanding the other provisions of this Section
904, whether because of an order for dissolution entered by a court of competent
jurisdiction or otherwise, distribution of the Debentures in the manner provided
herein is determined by the Property Trustee not to be practical, the Trust
Property shall be liquidated, and the Trust shall be dissolved, wound-up or
terminated, by the Property Trustee in such manner as the Property Trustee
determines. In such event, on the date of the dissolution, winding-up or other
termination of the Trust, Securityholders shall be entitled to receive out of
the assets of the Trust available for distribution to Securityholders, after
satisfaction of liabilities to creditors of the Trust as provided by applicable
law, an amount equal to the Liquidation Amount per Trust Security plus
accumulated and unpaid Distributions thereon to the date of payment (such amount
being the "Liquidation Distribution").  If, upon any such dissolution, winding-
up or termination, the Liquidation Distribution can be paid only in part because
the Trust has insufficient assets available to pay in full the aggregate
Liquidation Distribution, then, subject to the next succeeding sentence, the
amounts payable by the Trust on the Trust Securities shall be paid on a pro rata
basis (based upon Liquidation Amounts). The Holder of the Common Securities
shall be entitled to receive Liquidation Distributions upon any such
dissolution, winding-up or termination pro rata (determined as aforesaid) with
Holders of Capital Securities, except that, if a Debenture Event of Default has
occurred and is continuing, the Capital Securities shall have a priority over
the Common Securities.

SECTION 905.  MERGERS, CONSOLIDATIONS, AMALGAMATIONS OR
              REPLACEMENTS OF THE TRUST.

     The Trust may not merge with or into, consolidate, amalgamate, or be
replaced by, or convey, transfer or lease its properties and assets
substantially as an entirety to any corporation or other Person, except pursuant
to this Section 905. At the request of the Depositor, with the consent of the
Administrative Trustees and without the consent of the Holders of the Capital
Securities, the Property Trustee or the Delaware Trustee, the Trust may merge
with or into, consolidate, amalgamate, be replaced by or convey, transfer or
lease its properties and assets substantially as an entirety to a trust
organized as such under the laws of any state; provided, that (i) such successor
entity either (a) expressly assumes all of the obligations of the Trust with
respect to the Capital Securities; or (b) substitutes for the Capital Securities
other securities having substantially the same terms as the Capital Securities
(the "Successor Securities") so long as the Successor Securities rank the same
as the Capital Securities rank in priority with respect to distributions and
payments upon liquidation, redemption and otherwise; (ii) the Depositor
expressly appoints a trustee of such successor entity possessing substantially
the same powers and duties as the Property Trustee as the Holder of the
Debentures; (iii) the Successor Securities are listed or traded, or any
Successor Securities shall be listed or traded upon notification of issuance, on
any national securities exchange or other organization on which the Capital
Securities are then listed, if any; (iv) such merger, consolidation,
amalgamation, replacement, conveyance, transfer or lease does not adversely
affect the rights, preferences and privileges of the holders of the Capital
Securities (including any Successor Securities) in any material respect; (v)
such successor entity has a purpose substantially

                                       46
<PAGE>

identical to that of the Trust; (vi) prior to such merger, consolidation,
amalgamation, replacement, conveyance, transfer or lease, the Depositor has
received an Opinion of Counsel to the effect that (a) such merger,
consolidation, amalgamation, replacement, conveyance, transfer or lease does not
adversely affect the rights, preferences and privileges of the Holders of the
Capital Securities (including any Successor Securities) in any material respect;
and (b) following such merger, consolidation, amalgamation, replacement,
conveyance, transfer or lease, neither the Trust nor such successor entity shall
be required to register as an "investment company" under the Investment Company
Act; and (vii) the Depositor owns all of the Common Securities of such successor
entity and guarantees the obligations of such successor entity under the
Successor Securities at least to the extent provided by the Guarantee.
Notwithstanding the foregoing, the Trust shall not, except with the consent of
the Holders of 100% in Liquidation Amount of the Capital Securities,
consolidate, amalgamate, merge with or into, or be replaced by or convey,
transfer or lease its properties and assets substantially as an entirety to any
other Person or permit any other Person to consolidate, amalgamate, merge with
or into, or replace it if such consolidation, amalgamation, merger replacement,
conveyance, transfer or lease would cause the Trust or the successor entity to
be classified as other than a grantor trust for United States federal income tax
purposes.

                                   ARTICLE X

                           MISCELLANEOUS PROVISIONS

SECTION 1001. LIMITATION OF RIGHTS OF SECURITYHOLDERS.

     The death, incapacity, dissolution, bankruptcy or termination of any Person
having an interest, beneficial or otherwise, in Trust Securities shall not
operate to terminate this Trust Agreement, nor entitle the legal representatives
or heirs of such Person or any Securityholder for such Person, to claim an
accounting, take any action or bring any proceeding in any court for a partition
or winding-up of the arrangements contemplated hereby, nor otherwise affect the
rights, obligations and liabilities of the parties hereto or any of them.

SECTION 1002. AMENDMENT.

     (a) This Trust Agreement may be amended from time to time by the Trustees
and the Depositor, without the consent of any Securityholders, (i) as provided
in Section 811 with respect to acceptance of appointment by a successor Trustee;
(ii) to cure any ambiguity, correct or supplement any provision herein or
therein which may be inconsistent with any other provision herein or therein, or
to make any other provisions with respect to matters or questions arising under
this Trust Agreement, that shall not be inconsistent with the other provisions
of this Trust Agreement; or (iii) to modify, eliminate or add to any provisions
of this Trust Agreement to such extent as shall be necessary to ensure that the
Trust shall be classified for United States federal income tax purposes as a
grantor trust at all times that any Trust Securities are outstanding or to
ensure that the Trust shall not be required to register as an "investment
company" under the Investment Company Act; provided, however, that in the case
of clause (ii), such action shall not adversely affect in any material respect
the interests of any Securityholder, and any amendments of this Trust Agreement
shall become effective when notice thereof is given to the Securityholders.

                                       47
<PAGE>

     (b) Except as provided in Section 601(c) or Section 1002(c) hereof, any
provision of this Trust Agreement may be amended by the Trustees and the
Depositor (i) with the consent of Trust Securityholders representing not less
than a majority (based upon Liquidation Amounts) of the Trust Securities then
Outstanding; and (ii) upon receipt by the Trustees of an Opinion of Counsel to
the effect that such amendment or the exercise of any power granted to the
Trustees in accordance with such amendment shall not affect the Trust's status
as a grantor trust for United States federal income tax purposes or the Trust's
exemption from status of an "investment company" under the Investment Company
Act.

     (c) In addition to and notwithstanding any other provision in this Trust
Agreement, without the consent of each affected Securityholder (such consent
being obtained in accordance with Section 603 or 606 hereof), this Trust
Agreement may not be amended to (i) change the amount or timing of any
Distribution on the Trust Securities or otherwise adversely affect the amount of
any Distribution required to be made in respect of the Trust Securities as of a
specified date; or (ii) restrict the right of a Securityholder to institute suit
for the enforcement of any such payment on or after such date; notwithstanding
any other provision herein, without the unanimous consent of the Securityholders
(such consent being obtained in accordance with Section 603 or 606 hereof), this
paragraph (c) of this Section 1002 may not be amended.

     (d) Notwithstanding any other provisions of this Trust Agreement, no
Trustee shall enter into or consent to any amendment to this Trust Agreement
which would cause the Trust to fail or cease to qualify for the exemption from
status of an "investment company" under the Investment Company Act or to fail or
cease to be classified as a grantor trust for United States federal income tax
purposes.

     (e) Notwithstanding anything in this Trust Agreement to the contrary,
without the consent of the Depositor, this Trust Agreement may not be amended in
a manner which imposes any additional obligation on the Depositor.

     (f) In the event that any amendment to this Trust Agreement is made, the
Administrative Trustees shall promptly provide to the Depositor a copy of such
amendment.

     (g) Neither the Property Trustee nor the Delaware Trustee shall be required
to enter into any amendment to this Trust Agreement which adversely affects its
own rights, duties or immunities under this Trust Agreement. The Property
Trustee shall be entitled to receive an Opinion of Counsel and an Officers'
Certificate stating that any amendment to this Trust Agreement is in compliance
with this Trust Agreement.

SECTION 1003. SEPARABILITY.

     In case any provision in this Trust Agreement or in the Trust Securities
Certificates shall be invalid, illegal or unenforceable, the validity, legality
and enforceability of the remaining provisions shall not in any way be affected
or impaired thereby.

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<PAGE>

SECTION 1004. GOVERNING LAW.

     THIS TRUST AGREEMENT AND THE RIGHTS AND OBLIGATIONS OF EACH OF THE
SECURITYHOLDERS, THE TRUST AND THE TRUSTEES WITH RESPECT TO THIS TRUST AGREEMENT
AND THE TRUST SECURITIES SHALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY
THE LAWS OF THE STATE OF DELAWARE (WITHOUT REGARD TO CONFLICT OF LAWS PRINCIPLES
THEREOF).

SECTION 1005. PAYMENTS DUE ON NON-BUSINESS DAY.

     If the date fixed for any payment on any Trust Security shall be a day that
is not a Business Day, then such payment need not be made on such date but may
be made on the next succeeding day which is a Business Day, except that, if such
Business Day is in the next succeeding calendar year, such payment shall be made
on the immediately preceding Business Day (and without any reduction of interest
or any other payment in respect of any such acceleration), in each case with the
same force and effect as though made on the date fixed for such payment, and no
distribution shall accumulate thereon for the period after such date.

SECTION 1006. SUCCESSORS.

     This Trust Agreement shall be binding upon and shall inure to the benefit
of any successor to the Depositor, the Trust or the Relevant Trustee(s),
including any successor by operation of law. Except in connection with a
consolidation, merger or sale involving the Depositor that is permitted under
Article XII of the Indenture and pursuant to which the assignee agrees in
writing to perform the Depositor's obligations hereunder, the Depositor shall
not assign its obligations hereunder.

SECTION 1007. HEADINGS.

     The Article and Section headings are for convenience only and shall not
affect the construction of this Trust Agreement.

SECTION 1008. REPORTS, NOTICES AND DEMANDS.

     Any report, notice, demand or other communication which by any provision of
this Trust Agreement is required or permitted to be given or served to or upon
any Securityholder or the Depositor may be given or served in writing by deposit
thereof, first-class postage prepaid, in the United States mail, hand delivery
or facsimile transmission, in each case, addressed, (a) in the case of a Capital
Securityholder, to such Capital Securityholder as such Securityholder's name and
address may appear on the Securities Register; and (b) in the case of the Common
Securityholder or the Depositor, to COLORADO BUSINESS BANKSHARES, INC., 821
Seventeenth Street, Denver, Colorado 80202, Attention: Richard J. Dalton,
facsimile no.: (303) 244-9700. Any notice to Capital Securityholders shall also
be given to such owners as have, within two years preceding the giving of such
notice, filed their names and addresses with the Property Trustee for that
purpose. Such notice, demand or other communication to or upon a Securityholder
shall be deemed to have been sufficiently given or made, for all purposes, upon
hand delivery, mailing or transmission.

                                       49
<PAGE>

     Any notice, demand or other communication which by any provision of this
Trust Agreement is required or permitted to be given or served to or upon the
Trust, the Property Trustee or the Administrative Trustees shall be given in
writing addressed (until another address is published by the Trust) as follows:
(a) with respect to the Property Trustee to First Union Trust Company, National
Association, One Rodney Square, 920 King Street, 1st Floor, Wilmington, Delaware
19801, Attention: Corporate Trust Administration; (b) with respect to the
Delaware Trustee, to First Union Trust Company, National Association at the
above address; and (c) with respect to the Administrative Trustees, to them at
the address above for notices to the Depositor, marked "Attention:
Administrative Trustees of Capital Trust." Such notice, demand or other
communication to or upon the Trust or the Property Trustee shall be deemed to
have been sufficiently given or made only upon actual receipt of the writing by
the Trust or the Property Trustee.

SECTION 1009. AGREEMENT NOT TO PETITION.

     Each of the Trustees and the Depositor agree for the benefit of the
Securityholders that, until at least one year and one day after the Trust has
been terminated in accordance with Article IX, they shall not file, or join in
the filing of, a petition against the Trust under any bankruptcy, insolvency,
reorganization or other similar law (including, without limitation, the United
States Bankruptcy Code of 1978, as amended) (collectively, "Bankruptcy Laws") or
otherwise join in the commencement of any proceeding against the Trust under any
Bankruptcy Law. In the event the Depositor or any of the Trustees takes action
in violation of this Section 1009, the Property Trustee agrees, for the benefit
of Securityholders, that at the expense of the Depositor (which expense shall be
paid prior to the filing), it shall file an answer with the bankruptcy court or
otherwise properly contest the filing of such petition by the Depositor or such
Trustee against the Trust or the commencement of such action and raise the
defense that the Depositor or such Trustee has agreed in writing not to take
such action and should be stopped and precluded therefrom. The provisions of
this Section 1009 shall survive the termination of this Trust Agreement.

SECTION 1010. TRUST INDENTURE ACT; CONFLICT WITH TRUST INDENTURE ACT.

     (a) This Trust Agreement is subject to the provisions of the Trust
Indenture Act that are required to be part of this Trust Agreement and shall, to
the extent applicable, be governed by such provisions.

     (b) The Property Trustee shall be the only Trustee which is a trustee for
the purposes of the Trust Indenture Act.

     (c) If any provision hereof limits, qualifies or conflicts with another
provision hereof which is required to be included in this Trust Agreement by any
of the provisions of the Trust Indenture Act, such required provision shall
control. If any provision of this Trust Agreement modifies or excludes any
provision of the Trust Indenture Act which may be so modified or excluded, the
latter provision shall be deemed to apply to this Trust Agreement as so modified
or to

                                       50
<PAGE>

be excluded, as the case may be. The application of the Trust Indenture Act to
this Trust Agreement shall not affect the nature of the Securities as equity
securities representing undivided beneficial interests in the assets of the
Trust.

SECTION 1011. ACCEPTANCE OF TERMS OF TRUST AGREEMENT, GUARANTEE AND INDENTURE.

     THE RECEIPT AND ACCEPTANCE OF A TRUST SECURITY OR ANY INTEREST THEREIN BY
OR ON BEHALF OF A SECURITYHOLDER OR ANY BENEFICIAL OWNER, WITHOUT ANY SIGNATURE
OR FURTHER MANIFESTATION OF ASSENT, SHALL CONSTITUTE THE UNCONDITIONAL
ACCEPTANCE BY THE SECURITYHOLDER AND ALL OTHERS HAVING A BENEFICIAL INTEREST IN
SUCH TRUST SECURITY OF ALL THE TERMS AND PROVISIONS OF THIS TRUST AGREEMENT AND
AGREEMENT TO THE SUBORDINATION PROVISIONS AND OTHER TERMS OF THE GUARANTEE AND
THE INDENTURE, AND SHALL CONSTITUTE THE AGREEMENT OF THE TRUST, SUCH
SECURITYHOLDER AND SUCH OTHERS THAT THE TERMS AND PROVISIONS OF THIS TRUST
AGREEMENT SHALL BE BINDING, OPERATIVE AND EFFECTIVE AS BETWEEN THE TRUST AND
SUCH SECURITYHOLDER AND SUCH OTHERS.

                             SIGNATURE PAGE FOLLOWS

                                       51
<PAGE>

    IN WITNESS WHEREOF, the parties hereto have caused this Trust Agreement to
be duly executed, all as of the day and year first above written.

                              COLORADO BUSINESS BANKSHARES, INC.

                              By:_______________________________

                              Name:____________________________

                              Title:_____________________________

                              FIRST UNION TRUST COMPANY, NATIONAL
                                ASSOCIATION, as Property Trustee

                              By:______________________________

                              Name:____________________________

                              Title:_____________________________

                              FIRST UNION TRUST COMPANY, NATIONAL
                                ASSOCIATION, as Delaware Trustee

                              By:______________________________

                              Name:____________________________

                              Title:_____________________________

                              ________________________________________
                              ____________, As Administrative Trustee

                              ________________________________________
                              ____________, As Administrative Trustee

                              _______________________________________
                              ____________, As Administrative Trustee

                                       52
<PAGE>

                                                                       EXHIBIT A

                             CERTIFICATE OF TRUST

                                      OF

                 COLORADO BUSINESS BANKSHARES CAPITAL TRUST I

     THIS CERTIFICATE OF TRUST OF Colorado Business Bankshares Capital Trust I
(the "Trust"), dated __________, 2000, is being duly executed and filed by the
undersigned, as trustees, to form a business trust under the Delaware Business
Trust Act (12 DEL. C. Section 3801 ET SEQ.)(the "Act").

     1.   NAME.  The name of the business trust formed hereby is Colorado
Business Bankshares Capital Trust I.

     2.   DELAWARE TRUSTEE.  The name and business address of the trustee of the
Trust in the State of Delaware is First Union Trust Company, National
Association, One Rodney Square, 920 King Street, Wilmington, Delaware 19801,
Attention: Corporate Trust Administration.

     3. EFFECTIVE DATE.  This Certificate of Trust will be effective upon
filing.

     IN WITNESS WHEREOF, the undersigned have executed this Certificate of Trust
in accordance with Section 3811(a)(1) of the Act.

                              FIRST UNION TRUST COMPANY, NATIONAL
                                ASSOCIATION, as Delaware trustee

                              By:________________________________
                                     Name:    Edward L. Truitt, Jr.
                                     Title:   Vice President

                              ________________________________________
                              ____________, As Administrative Trustee

                              ________________________________________
                              ____________, As Administrative Trustee

                              _______________________________________
                              ____________, As Administrative Trustee

<PAGE>

                                                                       EXHIBIT B

           THIS CERTIFICATE IS NOT TRANSFERABLE EXCEPT IN COMPLIANCE
                    WITH SECTION 510 OF THE TRUST AGREEMENT

Certificate Number CM-1                  Number of Common Securities____________

                   Certificate Evidencing Common Securities

                                      of

                 Colorado Business Bankshares Capital Trust I

                               Common Securities

                 (liquidation amount $10 per Common Security)

     COLORADO BUSINESS BANKSHARES CAPITAL TRUST I, a statutory business trust
created under the laws of the State of Delaware (the "Trust"), hereby certifies
that COLORADO BUSINESS BANKSHARES, INC. (the "Holder") is the registered owner
of_____________________ (____________) common securities of the Trust
representing undivided beneficial interests in the assets of the Trust and
designated the _____% Common Securities (liquidation amount $10 per Common
Security) (the "Common Securities"). In accordance with Section 510 of the Trust
Agreement (as defined below), the Common Securities are not transferable and any
attempted transfer hereof shall be void. The designations, rights, privileges,
restrictions, preferences, and other terms and provisions of the Common
Securities are set forth in, and this certificate and the Common Securities
represented hereby are issued and shall in all respects be subject to the terms
and provisions of, the Amended and Restated Trust Agreement of the Trust dated
as of____________, 2000, as the same may be amended from time to time (the
"Trust Agreement"), including the designation of the terms of the Common
Securities as set forth therein. The Trust shall furnish a copy of the Trust
Agreement to the Holder without charge upon written request to the Trust at its
principal place of business or registered office.

     Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

<PAGE>

     IN WITNESS WHEREOF, one of the Administrative Trustees of the Trust has
executed this certificate this ___ day of ____________, 2000.

                              Colorado Business Bankshares Capital Trust I

                              By:_____________________________________
                              Name:___________________________________

                              Title:  Administrative Trustee

                                       2
<PAGE>

                                                                       EXHIBIT C

                   AGREEMENT AS TO EXPENSES AND LIABILITIES

     AGREEMENT AS TO EXPENSES AND LIABILITIES (this "Agreement") dated as of
____________, 2000, between COLORADO BUSINESS BANKSHARES, INC., a Colorado
corporation (the "Company"), and COLORADO BUSINESS BANKSHARES CAPITAL TRUST I, a
Delaware business trust (the "Trust").

                                   RECITALS

     WHEREAS, the Trust intends to issue its common securities (the "Common
Securities") to, and receive ___% Subordinated Debentures (the "Debentures")
from, the Company and to issue and sell 2,000,000 of the ___% Cumulative Capital
Securities of the Trust (the "Capital Securities") with such powers, preferences
and special rights and restrictions as are set forth in the Amended and Restated
Trust Agreement of the Trust dated as of____________, 2000, as the same may be
amended from time to time (the "Trust Agreement");

     WHEREAS, the Company shall directly or indirectly own all of the Common
Securities of the Trust and shall issue the Debentures;

     NOW, THEREFORE, in consideration of the purchase by each holder of the
Capital Securities, which purchase the Company hereby agrees shall benefit the
Company and which purchase the Company acknowledges shall be made in reliance
upon the execution and delivery of this Agreement, the Company, including in its
capacity as holder of the Common Securities, and the Trust hereby agree as
follows:

                                   ARTICLE I

SECTION 1.1.   GUARANTEE BY THE COMPANY.

     Subject to the terms and conditions hereof, the Company, including in its
capacity as holder of the Common Securities, hereby irrevocably and
unconditionally guarantees to each person or entity to whom the Trust is now or
hereafter becomes indebted or liable (the "Beneficiaries") the full payment when
and as due, of any and all Obligations (as hereinafter defined) to such
Beneficiaries. As used herein, "Obligations" means any costs, expenses or
liabilities of the Trust other than obligations of the Trust to pay to holders
of any Capital Securities or other similar interests in the Trust the amounts
due such holders pursuant to the terms of the Capital Securities or such other
similar interests, as the case may be. This Agreement is intended to be for the
benefit of, and to be enforceable by, all such Beneficiaries, whether or not
such Beneficiaries have received notice hereof.

SECTION 1.2.   TERM OF AGREEMENT.

     This Agreement shall terminate and be of no further force and effect upon
the later of (a) the date on which full payment has been made of all amounts
payable to all holders of all the Capital Securities (whether upon redemption,
liquidation, exchange or otherwise); and (b) the date on which

<PAGE>

there are no Beneficiaries remaining; provided, however, that this Agreement
shall continue to be effective or shall be reinstated, as the case may be, if at
any time any holder of Capital Securities or any Beneficiary must restore
payment of any sums paid under the Capital Securities, under any obligation,
under the Capital Securities Guarantee Agreement dated the date hereof by the
Company and First Union Trust Company, National Association, as guarantee
trustee or under this Agreement for any reason whatsoever. This Agreement is
continuing, irrevocable, unconditional and absolute.

SECTION 1.3.   WAIVER OF NOTICE.

     The Company hereby waives notice of acceptance of this Agreement and of any
obligation to which it applies or may apply, and the Company hereby waives
presentment, demand for payment, protest, notice of nonpayment, notice of
dishonor, notice of redemption and all other notices and demands.

SECTION 1.4.   NO IMPAIRMENT.

     The obligations, covenants, agreements and duties of the Company under this
Agreement shall in no way be affected or impaired by reason of the happening
from time to time of any of the following:

     (a) the extension of time for the payment by the Trust of all or any
portion of the obligations or for the performance of any other obligation under,
arising out of, or in connection with, the Obligations;

     (b) any failure, omission, delay or lack of diligence on the part of the
Beneficiaries to enforce, assert or exercise any right, privilege, power or
remedy conferred on the Beneficiaries with respect to the Obligations or any
action on the part of the Trust granting indulgence or extension of any kind; or

     (c) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement composition or readjustment of debt of,
or other similar proceedings affecting, the Trust or any of the assets of the
Trust. There shall be no obligation of the Beneficiaries to give notice to, or
obtain the consent of, the Company with respect to the happening of any of the
foregoing.

SECTION 1.5.   ENFORCEMENT.

     A Beneficiary may enforce this Agreement directly against the Company, and
the Company waives any right or remedy to require that any action be brought
against the Trust or any other person or entity before proceeding against the
Company.

SECTION 1.6.   SUBROGATION.

     The Company shall be subrogated to all (if any) rights of the Trust in
respect of any amounts paid to the Beneficiaries by the Company under this
Agreement; provided, however, that the Company shall not (except to the extent
required by mandatory provisions of law) be entitled to

                                       2
<PAGE>

enforce or exercise any rights which it may acquire by way of subrogation of any
indemnity, reimbursement or other agreement, in all cases as a result of payment
under this Agreement, if, at the time of any such payment, any amounts are due
and unpaid under this Agreement.

                                  ARTICLE II

SECTION 2.1.   BINDING EFFECT.

     All guarantees and agreements contained in this Agreement shall bind the
successors, assigns, receivers, trustees and representatives of the Company and
shall inure to the benefit of the Beneficiaries.

SECTION 2.2.   AMENDMENT.

     So long as there remains any Beneficiary or any Capital Securities of any
series are outstanding, this Agreement shall not be modified or amended in any
manner adverse to such Beneficiary or to any of the holders of the Capital
Securities.

SECTION 2.3.   NOTICES.

     Any notice, request or other communication required or permitted to be
given hereunder shall be given in writing by delivering the same by facsimile
transmission (confirmed by mail), telex, or by registered or certified mail,
addressed as follows (and if so given, shall be deemed given when mailed or upon
receipt of an answer back, if sent by telex):

Colorado Business Bankshares Capital Trust I
821 Seventeenth Street
Denver, Colorado 80202
Facsimile No.: (____)_______
Attention:_________________, Administrative Trustee

Colorado Business Bankshares, Inc.
821 Seventeenth Street
Denver, Colorado 80202
Facsimile No.: (____)_______
Attention: Steven Bangert, Chairman of the Board and Chief Executive Officer

SECTION 2.4.   CHOICE OF LAW

     This agreement shall be governed by and construed and interpreted in
accordance with the laws of the State of Delaware (without regard to conflict of
laws principles).

                                       3
<PAGE>

     THIS AGREEMENT is executed as of the day and year first above written.

                         COLORADO BUSINESS BANKSHARES, INC.

                         By:_____________________________________

                         Name:___________________________________

                         Title:__________________________________

                         COLORADO BUSINESS BANKSHARES CAPITAL TRUST I

                         By:_____________________________________

                         Name:___________________________________
                         Title:   Administrative Trustee

                                       4
<PAGE>

                                                                       EXHIBIT D

Certificate Number CA-1                Number of Capital Securities 2,000,000

                   Certificate Evidencing Capital Securities

                                      of

                 Colorado Business Bankshares Capital Trust I

                      ____% Cumulative Capital Securities

                 (liquidation amount $10 per Capital Security)

                                     CUSIP

     Colorado Business Bankshares Capital Trust I, a statutory business trust
created under the laws of the State of Delaware (the "Trust"), hereby certifies
that Cede & Co. (the "Holder") is the registered owner of 2,000,000 Capital
Securities of the Trust representing undivided beneficial interests in the
assets of the Trust and designated the ____% Cumulative Capital Securities
(liquidation amount $10 per Capital Security) (the "Capital Securities"). The
Capital Securities are transferable on the books and records of the Trust, in
person or by a duly authorized attorney, upon surrender of this certificate duly
endorsed and in proper form for transfer as provided in Section 504 of the Trust
Agreement (as defined herein). The designations, rights, privileges,
restrictions, preferences, and other terms and provisions of the Capital
Securities are set forth in, and this certificate and the Capital Securities
represented hereby are issued and shall in all respects be subject to the terms
and provisions of, the Amended and Restated Trust Agreement of the Trust dated
as of ____________, 2000, as the same may be amended from time to time (the
"Trust Agreement"), including the designation of the terms of Capital Securities
as set forth therein. The Holder is entitled to the benefits of the Capital
Securities Guarantee Agreement entered into by Colorado Business Bankshares,
Inc., a Colorado corporation, and First Union Trust Company, National
Association, as guarantee trustee, dated as of ________, 2000, as the same may
be amended from time to time (the "Guarantee"), to the extent provided therein.
The Trust shall furnish a copy of the Trust Agreement and the Guarantee to the
Holder without charge upon written request to the Trust at its principal place
of business or registered office.

     Upon receipt of this certificate, the Holder is bound by the Trust
Agreement and is entitled to the benefits thereunder.

<PAGE>

     Unless the Certificate of Authentication has been manually executed by the
Authentication Agent, this certificate is not valid or effective.

     IN WITNESS WHEREOF, the Administrative Trustees of the Trust have executed
this Certificate this ___ day of _______, 2000.

                         COLORADO BUSINESS BANKSHARES CAPITAL
                            TRUST I

                         By: ________________________________
                             ________________, as
                             Administrative Trustee

                         By: ________________________________
                             _______________, as
                             Administrative Trustee

                         By: ________________________________
                             _______________, as
                             Administrative Trustee

                                       2
<PAGE>

                        FORM OF REVERSE OF CERTIFICATE

     The Trust will furnish without charge to any registered owner of Capital
Securities who so requests, a copy of the Trust Agreement and the Guarantee. Any
such request should be in writing and addressed to Colorado Business Bankshares
Capital Trust I, c/o Colorado Business Bankshares, Inc., 821 Seventeenth Street,
Denver, Colorado 80202 or to the Registrar named on the face of this
Certificate.

     The following abbreviations, when used in the inscription on the face of
this Certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

     TEN CON - as tenants in common

     TEN ENT - as tenants in the entireties

     JT TEN  - as joint tenants with right of survival

     UNIF GIFT MIN ACT - under Uniform Gift to Minors Act and not as tenants

     Additional abbreviations may also be used though not in the above list.

                                  ASSIGNMENT

     FOR VALUE RECEIVED, the undersigned hereby sells, assigns and transfers
unto:

______________________________________________________________________________

______________________________________________________________________________
    (Please insert social security or other identifying number of assignee)

______________________________________________________________________________

______________________________________________________________________________

______________________________________________________________________________
                   (insert address and zip code of assignee)

the within Certificate and all rights and interests represented by the Capital
Securities evidenced thereby, and hereby irrevocably constitutes and appoints
attorney to transfer the said Capital Securities on the books of the within-
named Trust with full power of substitution in the premises.

Dated: _______________________________     Signature: _________________________

                                       3
<PAGE>

Note: The signature(s) to this assignment must correspond with the name(s) as
      written upon the face of this Certificate in every particular, without
      alteration or enlargement, or any change whatever.

Signature(s) Guaranteed:

NOTICE: Signature(s) must be guaranteed by an "eligible guarantor institution"
        that is a member or participant in a "signature guarantee program"
        (i.e., the Securities Transfer Agents Medallion Program, the Stock
        Exchange Medallion Program or the New York Stock Exchange, Inc.
        Medallion Signature Program).

                                       4
<PAGE>

                                                                       EXHIBIT E

                         CERTIFICATE OF AUTHENTICATION

     This is one of the ____% Cumulative Capital Securities referred to in the
within-mentioned Amended and Restated Trust Agreement.

                         FIRST UNION TRUST COMPANY, NATIONAL
                           ASSOCIATION, as Authentication Agent and
                           Registrar

                         By:      ______________________________________
                         Name:
                         Its:

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