Another suggestion of merit is Casey Mckee of Ne Plus Ultra in Austin, who has possibly the broadest range of the finest electronics and speakers on display that I have _ever_ seen outside of NYC (SBS) and Delaware (Overture), and I have seen the inside of most of the US best 2ch. retailers.
I know that is outside of Dallas, but he is well worth the trip. Dallas Audio Concepts is the best store I have been to in Dallas. I've not been in Vu's new store.