Oh, don't worry. My Jeep gets dirty whenever I get the chance. I have beat BFG All Terrains mounted on 15x7 Grizzlies on the Jeep now (as seen on FQuick), and I was looking for something a little more aggressive without going to a full mud terrain. These fit the bill, and although they are an off-brand (Tempra) they are made in the same factory as Coopers and seem to get good reviews across the 'net.
The new wheels are 15x8 Canyons and the tires are the same size as my BFGs: 31x10.5x15s.
Here's a decent pic of the wheels / tires that are on the Jeep now:
http://www.njfboa.org/JustinImages/CMSP/IMG_0054.jpg
- Justin