Exhibit 8 JOINT FILING AGREEMENT ---------------------- Pursuant to Rule 13d-1(k)(1)(iii) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that the Statement on Schedule 13D to which this exhibit is attached is...

                                                                       Exhibit 8


                             JOINT FILING AGREEMENT
                             ----------------------

      Pursuant to Rule 13d-1(k)(1)(iii) promulgated under the Securities
Exchange Act of 1934, as amended, the undersigned agree that the Statement on
Schedule 13D to which this exhibit is attached is filed on behalf of each of
them in the capacities set forth below.


Dated: June 18, 1999

                                XXXXX  INVESTMENT ASSOCIATES V, L.P.

                                By:  Xxxxx Partners V, L.P., its
                                     General Partner

                                By:             *
                                     --------------------------------


                                XXXXX EQUITY PARTNERS V, L.P.

                                By:             *
                                     --------------------------------


                                XXXXX PARTNERS V, L.P.


                                By:             *
                                     --------------------------------


                                                *
                                -------------------------------------
                                      Xxxxxx X. Xxxxxxxxx


                                                *
                                -------------------------------------
                                      Xxxxx X. Xxxxxxx


                                                *
                                -------------------------------------
                                      Xxxxxx X. Xxxxxxxx


                                                *
                                 -------------------------------------
                                      Xxxxxx X. Xxxx, XX


                                                *
                                 -------------------------------------
                                      Xxxxx X. Xxxxx, Xx.


                                                *
                                 -------------------------------------
                                      Xxxxxxx X. Xxxxxxxx


                                                *
                                 ------------------------------------
                                      Xxxxx X. Xxxxxxxxxx



                                 ------------------------------------
                                      Xxxxxx X. Xxxxxx

 *  By:  /s/ Xxxxx X. Xxxxxxx, XX
         Xxxxx X. Xxxxxxx, XX
         Attorney-in-Fact



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