Look up Hobie Fleet 23 based out of Dallas.
http://www.hobiefleet23.com/Also Look up the Texas City Dyke Yacht Club in Galveston.
http://www.tcdyc.com/Those are the two hotbeds of activity in your area, that I am aware of.
The local Dealer in Dallas is Mariner Sails
http://www.mariner-sails.com/I believe there is also a Hobie Dealer in Austin.
If one of those three links doesn't get you "hooked up" with a contact that can answer your questions, come back here and we'll see what else we can find for you.
Fleet 23 still has a couple of events yet this year that you could attend and probably find someone looking for crew. That would get you out on a boat with a knowledgeable skipper, and you would be able to spend a weekend with a bunch of Hobie Sailors that could fill you in on a lot more local information.
Stephen