IF budget is not an issue...definitely check out Lofton's at the Versace Mansion on Ocean. It's worth it, but make a reservation if possible!!!
Also try A La Folie on Espanola Way, very nice traditional French cuisine and good wine.
The Palace is worth stopping in for a quick bite, quick drink, take in the scenery and stick around for the entertainment...it's hilarious.
If you're not sure and just want to browse, you can check out all of the restaurants on Ocean Drive. They all have menus at the entrance and there is almost always a 2-4-1 special of some sort.