I'm with a group near Big Bear California (actually in Arrowhead if you're familiar with the area) that loves to wheel. We have members with Jeeps, Unimogs, suzuki, toyota and we'd love to have hummer folk. I'm a jeep guy looking to buy an H3... anyway. We primarily do rockcrawling, but we do absolutly every trail in the area. If you need a friend to wheel with, drop by our club's site and post up that you're looking to go out.
http://www.rockskullz.com (check in at our forums)