Try Redweek.com for a timeshare in Palm Beach. Palm Beach is a little more of a party atmosphere (and has great beach and pier bars). It might be more economical to try and rent a separate night at the Renaissance for access to the island than paying the non-guest fee, plus you'd get to spend a night downtown. My thoughts on the island is it's okay if it's free to get to, but I wouldn't pay anything extra to visit. If you stay in Palm Beach, I recommend Moomba for a good time and live music.