I also am going to be looking for one. Are all of them battery operated? The ones I was looking at ran from a couple of AA batteries. Are thier models that run off of a 12 volt accesory port? How do the battery models work when it's -40? Usually anything with batteries has issues at that temperature. It seems the ones I was looking at were around $250 for the camera, batteries, and two 4 gig SD cards. I think it was a VIO? Hope to hear some feedback.