Lots of old school activity, lots of new school activity, lots of boardgame activity. Several great conventions in the area.l NTRPGCon, Owlcon are two I goto and love. Also, various minicons ABGB, oldschool in Austin. Lots of minis wargaming, centered around Great Hall Games. Big ASL group.
D&D Meetup http://meetup.com/dnd-823/
RPG Meetup http://www.meetup.com/roleplayers-413/
I maintain a Google map of Austin FLGS even though they keep going out of business there are still several to choose from.