I don't know for certain if anywhere offers full sets. The salon at the Yacht and Beach Clubs definitely doesn't. I broke a nail once on vacation and they couldn't fix it.
None of the spas at the Disney Resorts offer full sets, but the spa at the Swan & Dolphin (the Mandara Spa) does offer full full sets. I needed a place to get my nails done for my wedding and that's where I will be going!
Thanks ladies for the info!! Now I need to decide if I should get them done at home before we leave for WDW or get them done at the spa at the Swan and Dolphin before our wedding cruise! Any suggestions?