I've recently joined an organization that has formal events, so it's time to grow up and finally buy a tux. Where in Austin would you go to buy a nice tux?
I got mine at the Mens Wharehouse. Tux and all accessories for about $400. I got the cheapest one they had. I only wear it about once a year, but it looks nice.
My suggestion is to go with the classic style. Mine is about 5 years old and it still looks good. The ones that were "in style" then look kind of dated now.
I have owned many tuxes and wear one 6-10 times a year. If you are talking classic black, they all look the same. Any department store or even SteinMart will do you just fine.