Mike,

I'd suggest picking up a copy of "Guide to Moab, UT Backroads & 4-Wheel Drive Trails" by Charles A. Wells. This book has a lot of resources that have come in handy on our Moab trips. The book has several great features: Equipment recommendations, Trails by area, by difficulty, & GPS coordinates. My book is falling apart now, so I'll probably be picking up a new copy soon.

Here's the link to the publisher http://www.funtreks.com/

RX