Pic up Ned DeLoache's book "Diving Guide to Underwater Florida"(
www.amazon.com ), it'll get you started with several of the sites inshore/offshore Pensacola, Destin, and Panama City. There are also several shore dives available, mostly consisting of jettie dives and old piers - but there are a few shipwrecks off of Ft. Pickens(Pensacola). It'll also go into the many springs available in the panhandle - don't count them out, they are some of the most beautiful.
Shoot me a line when you get out this way, I dive FL's panhandle's salt and freshwater sites quite a bit. I live just on the other side of the AL line, not too far away from most of it.
Got a couple of Navy buds that dive with me from NAS Pensacola - might as well get a couple of Eglin people into the mix. There is ALOT to dive, no matter if you want offshore, inshore, beach, or springs.