I was surfing the web and came accross the UFL website.  Eventually I started looking at the current rosters to see if I could find any former texans.  These were the big names I found.

California Redwoods

Jon Abbate as a FB

Earl Cochran DE, just 5 tackles on the season

Shane Boyd QB

New York Sentinels

Quinn Gray QB, 601 yards 3 TD 2 INT, they are 0-5

Florida Tuskers

two former left tackles for our Texans

Charles Spencer and Seth Wand

Other former Texans, some very obscure former Texans

David Pittman DB, Cecil Sapp RB, Craphonso Thorpe WR, Gabe Long DL, Andrae Thurman WR, Frank Murphy WR, Eric Powell DE, 

Other former players

Simeon Rice DE, Koren Robinson WR, JP Losman QB, Scott Player P, Tony Parrish DB, Tim Rattay QB, Tatum Bell RB, Keary Colber WR, Dexter Jackson S, Ricky Manning Jr. DB, Michael Pittman RB, Todd Sauerbrun P, Odel Thurman LB, Mike McMahon QB,