Yep, I'm pretty sure it's the same ownership - I have seen some of the same people managing both the Bee Caves and Round Rock locations.
I only know of two dim sum places in town unless you count Pao's. T&S and Tien Hong. Are there others?
I tried the new ethiopian place on 35 and DK. It was ok. Wasn't great but not too bad if you're really hankering for it.
So we ended up going to Star of India after all that. I was probably exactly what I expected, which was to say that it was decent, but nothing special. Next time we'll probably hit up Pao's Mandarin House or Din Ho. Thanks for all the recommendations so far, guys!