South Florida:
Jupiter Hills, Seminole, Bear's Club, Loblolly Pines, Old Marsh, Emerald Dunes, Pine Tree, PGA Reserve (54 holes) and PGA National. And that's not even a road trip. You could easily swap out some of the area clubs.
North Florida:
Pine Barrens, Rolling Oaks, Lake Jovita, the Dunes at Seville, Golden Ocala, CC of Ocala, El Diablo, and Black Diamond. Wow. It always amazes me how many great courses are so close to each other in such a remote area.
Minnesota (not a Spring Break trip):
Interlachen and Minikahda (Watson/Ross), Rochester and Golden Valley (Tillinghast), Somerset (Raynor), North Oaks (Thompson), Northland (Ross), Hazeltine (RTJ), the Wilds (Weiskopf/Morrish), StoneRidge (Weed), Spring Hill (Fazio). You'd get a great sampling of many architects and play some very challenging courses.