Joint Filing Agreement
31
Exhibit 4
Joint Filing Agreement
We, the signatories of the statement on Schedule 13D to which this
Agreement is attached, do hereby agree that such statement is, and any
amendments thereto filed by any of us will be, filed on behalf of each of us.
Dated: April 5, 2004
OAK HILL CAPITAL PARTNERS, L.P.
By: OHCP GenPar, L.P.,
its general partner
By: OHCP MGP, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
OAK HILL CAPITAL MANAGEMENT PARTNERS, L.P.
By: OHCP GenPar, L.P.,
its general partner
By: OHCP MGP, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
32
OHCP GENPAR, L.P.
By: OHCP MGP, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
OHCP MGP, LLC
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
OAK HILL VENTURE FUND I, L.P.
By: OHVF GenPar I, L.P.,
its general partner
By: OHVF MGP I, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
OHVF GENPAR I, L.P.
By: OHVF MGP I, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
33
OHVF MGP I, LLC
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
FW INVESTORS V, L.P.
By: FW Management II, LLC,
its general partner
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: President
FW MANAGEMENT II, LLC
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: President
FW GROUP GP, LLC
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
/s/ Xxxxx X. Xxxx
-----------------------------------------
XXXXX X. XXXX
Attorney-in-Fact for:
XXXXXX X. XXXX (1)
(1) A Power of Attorney authorizing Xxxxx X. Xxxx, et al., to act on behalf of
Xxxxxx X. Xxxx previously has been filed with the Securities and Exchange
Commission.
34
CAPITAL PARTNERSHIP
By: Xxxxxxxx Xxx Bass 1980 Trust,
Managing Partner
By: Panther City Investment Company,
Trustee
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
GROUP III 31, LLC
By: /s/ Xxxxx X. Xxxx
-------------------------------------
Name: Xxxxx X. Xxxx
Title: Vice President
/s/ Xxxxx X. Xxxxx
-----------------------------------------
Xxxxx X. Xxxxx
/s/ Xxxx X. Xxxxxxx
-----------------------------------------
Xxxx X. Xxxxxxx
/s/ Xxxxx X. Xxxx
-----------------------------------------
XXXXX X. XXXX
Attorney-in-Fact for:
X. XXXXXX XXXXXXXX (2)
(2) A Power of Attorney authorizing Xxxxx X. Xxxx, et al., to act on behalf of
X. Xxxxxx Xxxxxxxx previously has been filed with the Securities and
Exchange Commission.
35
Woodside Partners, L.P.
By: Tonandowah, L.L.C.,
its general partner
By: /s/ Xxxx X. Xxxx
-------------------------------------
Name: Xxxx X. Xxxx
Title: Vice President
Tonandowah, L.L.C.
By: /s/ Xxxx X. Xxxx
-------------------------------------
Name: Xxxx X. Xxxx
Title: Trustee of the Xxxxxxxx Xxxx Xxxxxxxx
1998 Trust, sole member of
Tonandowah, L.L.C.
