I'm going to go give this cycling club's rides a try.  I heard about them from a team member who I helped change a flat on the trail the other day and who had all the typical questions about a bent.  Iv'e emailed their group leader and they seem like a friendly bunch.   They ride Tues and Thurs at 6 from the benbrook ymca, which is within riding distance from the house.  
 
Here's their myspace with info.
 
http://www.myspace.com/tuneros_turbo