If you are in Charleston, and looking for a restaurant that serves Prime beef, there is only one, Grill 225. This is a New York Steakhouse, picked up and relocated to Charleston. The food although somewhat pricey, is in huge portions that can easily be shared by two people. If quality is what you are seeking this is the place.
The only detraction from a lovely evening was the Matre De, who was a jerk that needs to be replaced.