I have been in Austin for 13 months now. The market for all dev languages appears really good, if you take into account the amount of people hiring at local user groups and all the recruiter emails that I get. There are also one or more tech events on most nights of the week, so networking is super easy and the events are fun.

You mentioned being a Southern boy; I am from Chicago and I would say that it does not feel like a "southern" town here, so keep that in mind. It is urban, don't be fooled by the "Texas" thing.

Anyway, people are real friendly, tech jobs appear plentiful, and there is a very good nightlife. The housing is expensive for Texas, but probably not compared to other states. The "no income tax" thing helps, as well.