Since you live in FL, you need to know this company:
http://www.tampahybrids.com/listings
Currently have 23 sub $9K cars on their website. (Don't assume it is still there- they rollover very quickly. They buy 3-4 per week).
Owner's name is Todd Thomson. Has been in the car business forever, but recently decided he needed to sell only Priuses. He became a specialist in 2nd gen cars, and can tell you everything about them. He has a solid inventory of excellent used cars at fair prices. He makes his money on volume, not on reaming people. He doesn't finance (or at least he didn't a couple of years ago). Services what he sells, will ship anywhere.
He can set up a car how you want it, because he also buys salvage cars and swaps parts around. Want leather added to a base model? He can help.
He also learned how to do single cell replacements in the batteries, so the cost of repair drops drastically.
He's a car guy, and a Prius guru. He is open about sharing his knowledge.
He has recently expanded to other hybrids, but Prius is still his specialty.
I don't know him personally, and never bought from him, but spent a lot of time talking with him about options when I was running a transport company and thinking about switching the entire fleet to Priuses. I got a good vibe from him, and would have bought all my cars from him, if the business hadn't dropped off.
Priuses are uninspired drivers, but excellent at exactly what they say they can do. Economical environmentally friendly people movers. And maintenance costs are rock bottom. Many 300K mile cars still have their original brake pads (because of the regen braking).
Most cars my personal limit when shopping for a reliable driver is 200K. For a Prius, its 300K.
Good luck!