Exhibit 10.
                            JOINT FILING AGREEMENT
The undersigned, being duly authorized thereunto, hereby execute this agreement
as an exhibit to this Schedule 13D to evidence the agreement of the below-named
parties, in accordance with the rules promulgated pursuant to the Securities
Exchange Act of 1934, to file this Schedule, and any amendments or supplements
thereto, jointly on behalf of each such party.
Dated: April 25, 2001
                                               
RCBA GP, L.L.C.                                   RCBA STRATEGIC PARTNERS, L.P.
                                                  By: RCBA GP, L.L.C.
                                                      its general partner
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇                          By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    --------------------------------------            ---------------------------------
    ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇                                  ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    Member                                            Member
▇▇▇▇▇▇▇ ▇. ▇▇▇▇ & ASSOCIATES, INC.                ▇▇▇▇ CAPITAL PARTNERS, L.P.
                                                  By: ▇▇▇▇▇▇▇ ▇. ▇▇▇▇ & Associates, Inc.,
                                                      its general partner
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇                          By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    --------------------------------------            ---------------------------------
    ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇                                  ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    Partner, General Counsel                          Partner, General Counsel
    and Secretary                                     and Secretary
                                                  ▇▇▇▇ ▇▇ CORP.
    /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇                          By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    -----------------------------------               ----------------------------
    ▇▇▇▇▇▇▇ ▇. ▇▇▇▇                                   ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
                                                      Vice President, Secretary and
By: ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇, Attorney-in-Fact                Assistant Treasurer
CBRE HOLDING, INC.
By: /s/ ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    -----------------------------------
    ▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
    Vice President, Secretary and
    Assistant Treasurer