Still looking for a cam set up. I've watched the video comparison of the above two against the dod 500. It's video seemed a lot better but reading it's threads leaves me skeptical on its reliability. Was wondering if firmware updates have made any improvements in image quality of these two since that video was from October. Night time video is my main concern. In the video the 750 looked pretty grainy the 800 less so but seemed to have More trouble reading plates.