Also from the UK and did a trip around that side couple of years ago. We did Philly - Chincoteague - over the Chesapeake Bridge and into Williamsburg then onto DC (you could miss the city out - we visited Alexandria which was lovely) - upto Gettysburg and rode horses along the battlefields, then down the Blue Ridge Parkway stopping at Luray Cavern for an hour or so and finished with a vacation house on Smith Mountain Lake and rented a pontoon boat. Flew back from Raleigh Durham.