The immigration guys at MCO are pretty used to seeing Brits and Swedes walk through the gates with the intention of getting a PPL. They know the score.
I know that one British flight school in Florida actually has a letter from our friends at the INS stating that their students are exempt from obtaining any special visas.
So if it's a PPL, don't even bother thinking about visas unless you intend to spend more than 3 months doing it!