Hello, and welcome jskinny!
We sometimes travel to Tarpon Springs to a game shop called Pendragon. It's off US 19, on Tarpon Springs road. Not quite half way, but a little closer. Watch for our thread regarding Pendragon. They are pretty active with Warhammer, I believe they played it every time we went there, about 4 times in total. They stock quite a bit of Warhammer, and lots and lots of other stuff.
I hope we can game together some day, however, I don't get out your way at all.
I'm not sure, this is going out on a limb, but maybe there is a game shop in Tampa we could try and meet at some day. Just a thought that came to me, not sure if its feasible.
Mac