Welcome aboard. As it's been said here, when you move here, leave the Northern ways behind, learn and respect the culture and you'll be fine. Good luck.
Come on down, Jim - you'll find the citizenship application forms at any DPS office. It should only take a week or two to fill them out...
Seriously though, we're always glad to have folks like you join us. Just remember, there is no drink called "soda" or "pop" down here. The generic term for soft drinks is "coke". In Texas, the following conversation is quite common:
Don't get here and start thinking that this place would be great "if". We like it the way it is and too many immigrants from all over show up and bring their slightly liberal views with them.
After all the state people flee didn't magically happen overnight.
Hey, now, I was giving the most extreme example. For me it's always Dr Pepper - but you know as well as I do "coke" refers to anything fizzy that's not beer.