The Disney resorts have a lot of terrific restaurants. My favorite by far is the California Grill, up on top of the Contemporary Resort. Great food and service with a view over the Magic Kingdom that's ... well, magical!
Wife and I went to CG a few years ago for our anniversary, it was one of the best meals I've ever had. The filet was to die for. Firework viewing was pretty cool also. We're taking my brother and sister in law there for a wedding gift in March. Reservation should line up nicely with the fireworks.