My husband and I will be taking the Autotrain from Florida to Lorton, VA. We'd like to experience fall in the Shenandoah Valley, of course including Skyline Drive, but we don't want to drive south entirely on the Drive. Are there any segments more interesting than others?Would a few days in Loudon County at the beginning of our trip be worthwhile? Which towns on the way south are special and worth a day or two stop? What about Charlottesville and Monticello? If anyone knows the area well and could suggest an itinerary, we'd be very grateful. Also, would starting the trip on or about October 1 be a good time to see fall colors and have nice weather? Earlier? Later? We're flexible. Any help you can give us will be very much appreciated.