I dont know if this is what you are looking for, but right here at off-road.com they have some baja footage. http://www.off-road.com/orcvideo.html Also try looking at some of the sites in the Jeep junkies webring. I saw a few sites of some off-road clubs that had some mud bogging footage.
i remember a "gangsta-rap" movie from 1992-1993 called "CB-4" (cell-block-4). as i recall, the first scene was a black,lifted cj-7 climbing the steps of city hall. might want to check it out. that about the best part of the movie, you can quit watching after the first 5min. matt