Whatever you do, don't buy from Global Camera & Gallery on Int Drive near Seaworld. I'd read bad things about them selling cameras on camera forums but as they were next to our hotel and I needed a battery I thought I'd try.
How can you mis-sell a battery? They tried to fob me off with one which wouldn't have fit in my camera, (which I didn't have with me at the time), and insisted that it would. Only when I asked them to show me it inside an identical model did they back down and admit that they didn't have what I wanted.
Ritz cameras in the Florida Mall are OK, a bit like Jessops.