Been looking and having some trouble finding a legit one. Thanks 
25 views and not one gym. Tally sucks
If you're still looking,
there's 3-ish;
one is in french town at a community center; i've only ever talked to the coach on the phone, it's mainly aimed at kids (free if under 18). He said he doesnt mind older people, though, and it's really really cheap. The instruction is really good, I believe, Tavoris cloud (IBF light heavyweight champ) came out of the club.
Google "tallahassee fighting tigers" for contact info
Another is called "warrior's path fighting"; i trained there a little while and liked it, but havent kept up with them for a year or so. They had some really good amateur boxers while i was there and the coaching was good. They've moved since I was there (used to be just off s. monroe), i cant remember where.
The last is really an MMA gym, but they're pretty heavy on boxing and have more than a few guys that only compete in boxing (some really good amateur boxers plus tons of guys competing in all sorts of things). It's called "world triumph martial arts" and it's near TCC off of tennessee st. This is where im at now, and it's my favorite of the places I've trained at. I really like the coaches (Akbar, the main boxing coach, is awesome and really generous with his time and knowledge), the atmosphere is good, it's never hard to find good guys to drill with or spar in between the actual classes (open mat the whole time the gym is open plus the classes), and the grappling is really good too. If it's not obvious, this is what I'd recommend even if you're just going for pure boxing.