Interesting that this thread resurfaced after sleeping since April 2009.
Anyway, admittedly a SC newbie by lots of protocol. I beg you to not spend any time looking for let alone camping in any "SC upstate" State Parks, like Oconee (built by CCC) Devils Lake, several other SP's in the area bordering GA on many fine lakes Hartwell, Calhoun Falls, and the lesser known COE camps. Can't forget the hard to find Palmetto Cove sorta near Cleveland SC which is close enough to Travlers Rest which has a pretty neat micro distillery for fans of stump liquor.
Please go to the desert or PNW instead, OK, you can hit the beach camps, we'll be in the upstate.
2005 Dodge Ram 2500 5.9L 6 Speed
16" Michelins, Hi Spec Wheels, Max Brake, Carslile Actuator, Equal-i-zer, Dill TPMS. Campfire cook.