I'll be in Austin this fall too. Austin has a scene that is pretty diverse, but a lot of it is tied to the bar scene from what I've seen. Dallas had a metal scene with little to no variety - crown the empire, Memphis May fire, everyone dies In Utah, drop dead gorgeous, capture the crown, etcetera. Bigger rise core bands have a draw here that is ten times their normal.
drop dead gorgeous has never been from Dallas. There are some good local bands here in DFW, but most metal bands just seem to rip off Oh, Sleeper cause they made it out and got signed. I would rather have a bunch of heavy bands then FTSK rip-offs though any day. Hardcore scene is pretty popular here at least. 2004-2007 had some of the best locals though like Broadway and (in theory). Also, i hardly listen to anything new heavy or go to many heavy shows anymore so my opinion is a little different on current locals.