Agree with cheesy chung. Slim pickins and very pricey. I'm in a neighboring county to orlando and orange county, so there could be a store(s) I don't know about though.
In lake county in a small town called umatilla is ruffs saddle shop, which is what it sounds like, but last time I was out there they had a nice largish selection of knives. Better selection and stock than that crap bass pro on I -drive. If that's your thing though there is also a gander mountain store in lake mary in the county north called seminole. This all requires a bit of driving though.
That said its been a brutual economy down here from the building boom bust. I know bass pro and gander are still open....not sure about ruffs? I assume it is, but look 'em up online and call before you drive the county over.
Also take the time to visit randalls museum. Its worth the trip, imho.
Welcome to florida, btw.