I would humbly suggest that you contact Ed Friedland - send him an email, (it's on his website.) Ed is a great guy, a wonderful teacher and he will definitely
point you in the right direction.
We're talking Austin here, but I used to drive down from Killeen; Georgetown is a hop and a skip.
Edit: If you are looking for someone more local, I'd also suggest heading over to Ken'z Guitars there in Georgetown and ask their repair guy, Dennis, who is a fellow bassist and knows a lot of the area musicians/instructors.