Freefall University is THE place to do your AFF. The price works out the same as doing the course in the UK, but you get good weather, and accomodation is included. The instructors are good, and Dave is really helpful. He will arrange every part of your holiday, and also offer advice after you've completed your AFF course. I did my AFF at FFU just over a month ago, and I'm going back in a weeks time.
It's pretty difficult to fault them, and if you read the reviews at www.freefalluniversity.co.uk then you'll get a good idea of what a great time you can have!