My recommendation is to check out other people's cars and see what you like. I know before I removed my resonator, I went and saw DarkSide to see what it sounded like and get his opinion. If you're looking for stereo stuff, I know a guy that manages CarToys off 635 near The Galaria...for performance stuff and springs, I know one of the owners of horsepowerstore.com.
I'd join the group for a get together and check out everyone's rides. Actually, where are you a waitress/bartender, cause that might be a good place for the group to meet up sometime. I could go for a
Welcome aboard!!!