I went to the Wakeboard Camp a while back. Great staff and plenty of riding (make sure you're fairly in shape when you go or you'll likely skip some sets). I'm sure every major camp is equally as awesome though, see who has the best deal for the time of year/length of time you're working with and go with that.
Camps in general are awesome. You get riding in but you also get to hang out somewhere where everyone is uber-stoked on wakeboarding in general and for me it's a huge motivation to learn.