Ron,
Thanks for the suggestion. On our southbound drive, we ended up staying overnight at a Fairfield Inn & Suites near RDU / Brier Creek. The area looks like it's been undergoing some major development and the housing around the hotel looked fairly new. The hotel itself only opened over a year ago. Pretty nice, clean room, free wifi, and the biggest hit was the waffle machine that was available at breakfast. I did not get a chance to check out the shops at Brier Creek Commons, but maybe on a future trip.
On our return trip northbound, we stayed over at a Hotel Sierra (soon to be renamed Hyatt House) in Sterling VA (near Dulles). Nice lobby, clean, comfortable room, decent breakfast (they will prepare a made-to-order omelet for you if that floats your boat!)