I haven't found a good shop in Austin for involved engine maintenance so I just end up doing it myself. Avoid David McDavid Acura, they have some of the most incompetent techs I've ever encountered.
For basic suspension and brake work like alignments, tire mounting and balancing, parts swaps, etc. SoulSpeed is great.
Berlis is good for body and paint work, they do a lot of high end aluminum and exotic vehicles in general and are very good at extracting money from stingy insurance providers. Last time I was there getting my 5-series repaired they had an Imola orange NSX in for work.