Another couple of campground suggestions up in the Whites.
If you're into hiking, you can't beat Lafayette in Franconia notch since they are right at the trail head for hiking the ridge.
http://www.reserveamerica.com/campin...&parkId=270044
My personal pick - Glen Ellis campground, where the Ellis and Saco rivers meet. More of a resort with ballfields, pool, tennis courts, etc, but still pretty spread out and comfortable. They even have remote tenting where you leave your car behind.
http://www.glenelliscampground.com/
Enjoy.
-Pier626