Bill Jackson's is a great fly shop/dive shop that will point you in the right direction. Depending when you are going down there you might not need a guide. Safe to say, in june the snook will be on the beach south of Indian Rocks, more toward the Skyway by Fort Desota (40 minute drive)...pm and I will give you the goods. They are in less then 3' of water eating glass minnows and they never stop coming. If you want reds, get a guide I can only find them on the lights and by, I Cant Remember the Name of the Key.
Good Luck it is a beautiful area,
Pal