Gator makes a great pit, but being in Houston, you should check out all the key makers, Klose, Gator, Pits by JJ and Lonestar. You could also check out East Texas Smoker company. You could also look at Pitmaker, as I do like their Sniper model in concept (haven't seen them in person) as they're insulated and seem to seal very well.
On a side note, I just picked up a Superior Smoker SS-2, which is a vertical gravity smoker using charcoal. I'd really thought I'd end up with a traditional offset, along the lines of a Klose Backyard Chef (and might someday), but doing competitions, I wanted the fuel economy and lack of need to attend the pit like I would with the offset. (plus cost was much less)