Fox and Hound and PourHouse are nice but tend to be a bit lower end.
Try 8.0 or the Flying Saucer - owned by the same folks. 8.0 is a bit nicer and has a great drink menu. Flying Saucer will remind you of a smaller scale version of the Brickskeller.
Wish I had seen this sooner... I was looking for a drinking buddy last night and ended in downtown. Dallas, that is.