My suggestions for the Orlando area:
Sean O'Brien's school. Call him up and ask about private lessons, if you can't find the phone number email me and I will give it to you.
The Boarding School, with Shaun Murray and Travis Moye.
http://www.theboardingschool.com/ O'Town Watersports, with Glen Fletcher.
http://www.otownwatersports.com/ World Wakeboard Center(WWC), run by the Hansens.
http://www.worldwakeboardcenter.com/ Check those out.