Killbilly must drive about as fast as a three legged dog because Austin to FW is about 2.5 hours. Otherwise, his info is pretty good. Austin is the coolest city ever. If you are strapped for cash (or even if not), Austin Community College is a pretty good community college. The Riverside campus is badass, rent on that side of town is absurdly cheap (just don't keep anything expensive in your car overnight), and there are buses that will take you anywhere so you won't need a vehicle.
HOWEVER, if you want to fly in Austin you definitely need a car (unless you want to be hardcore like me and ride a bike 20+ miles everyday to the airport and shower at the FBO). I instructed with the University Flying Club for about a year. Maintenance is not dangerous, but the planes are old so stuff breaks and more often than not is not reported or fixed in a timely manner. Quality of instruction is hit or miss.
Do a search for "Austin" and you should be able to find a few of my old threads about aviation in the area. San Marcos has a flying club, but no aviation program. They only have a few airplanes, but the school is cheap, the town is cool, and the airport is a not so long bike ride away.
If you end up in Austin, Pilot's Choice is a good alternative. Reasonable prices and you can get all your ratings there.
If you can afford it and get in, the University of Texas is the greatest school in the world. Call the admissions office to learn more about scholarships. UT doesn't admit a lot of in state students, but if you've got high SAT scores and a good class ranking you've got a good shot at instate tuition (which is not very cheap). PM me if you've got specific questions about the university.