My wife and I went to the Dallas Theater Center for a date night a few months back and really had a great time. The dress code is pretty casual. This place is not in the best part of downtown, but the performance was great and we had a really good time. They are supposed to be moving to a new facility in a few years (2009 is what it said on their website), so that will be a nice improvement. The only minor complaint that I have is that the chairs were a bit uncomfortable.