I had the good fortune to run across a great new pet store in Dallas called 'Odyssey Pets'. They specialize in fish, and dog grooming - Yes, I know that seems odd at first glance, but it also reflects one of their best qualities.
We met Mike - the owner - a couple of years ago while he was working for another LFS. We were just getting back into the hobby, and were just getting our feet wet with seriously planted aquariums. Mike was a consistently good resource, and helped us avoid a number of beginner mistakes, and was in general a font of great information. He has since struck out on his own, and we are very, very happy to have such a knowledgeable, and upstanding guy running a shop in our area.
They also happen to own and show award winning havanese ( small dogs - for those like me that had to ask ). Thus, their focus is not so strange after all. They chose two arenas about which they are both knowledgeable and passionate.
At the moment his fish room is a little small, but they are expanding the shop by another 1500 square feet, and much of that will be given over to fish. Further, what stock he does currently have is healthy, and well cared for. His plants, however, are perhaps his best feature at the moment. They are easily the healthiest and best maintained selection I have been able to find locally.
Check them out.