Does your DSLR have a good video mode? (I've been drooling over the Canon EOS 7D and Nikon D300s lately.) As a digital video guy, I've often wanted to do low pan shots, but it's mighty awkward to crouch low to the ground, mount my camera on a tabletop tripod, and pan. I loved the following video because it demonstrated how I could mount my camera on a slider rail (as in this set by Juiced Link), slightly angle the rails, and slide my rig downhill on roller bearing wheels. Slick. I can get the same effect with long pans from a higher position that I can comfortably reach, too - you just need to brace the rails and let your camera roll.
Do you shoot video with your DSLR?
Is this something you'd like in your DV toolkit?