this place does a decent job.. doesn't have everything though.
http://www.gocampingamerica.com/
The cove is probably your best bet though if you are looking for more of a party spot. Huge spaces, they normally separate groups away from families.. no issues with noise late at night.
I've heard good things about Point Lookout in MD. It's a bit more of a drive than the cove though, and a state park.
http://www.dnr.state.md.us/publiclands/southern/pointlookout.html