Hi Turbo911boy,
Welcome to PPRUNE.
Yup I'll second the recommendation that Flyin'Dutch gave in his post above. They did me proud last year and I'm about to go back in less than two weeks time for a multi engine rating.
If you do decide on Naples then they have Cessna 152 / 172 and Piper Warrior (PA28) aircraft for for PPL students. I would certainly suggest you do a few hours on the type your interested in learning on at a local flying club before you travel to the States, just so you're not bewildered with everything on your first few days at the (or any) school. This'll ensure you don't have the niggling "can I do it" feeling as much during your first few days.
Also try and have the written exams passed before you go, or at least be ready to take the written exams when you get there. It'll release a lot of stress from the course if you were to study for the exams whilst over there. Especially in a three week course.
If you do pass some of the exams before you go, don't forget to get a CAA PPL application form with your exam results entered and signed for by the Examiner. Otherwise you'll probably be doing the exams again out in the States!!!
Best wishes,
Charlie Zulu.