I've found a few threads on this, but nothing conclusive.
Are the license plate frame style of rear view camera's high enough quality for use (good night vision, good picture quality, build quality, etc)? Or is it worth the extra effort to mount one of the stand alone cameras (like in the mp3car.com store)? And if the license plate style is 'good enough', is there a best (performance vs price) model to get?

Not sure if its relevant or not, but I'll be pumping the video signal into the composite input on the Xenarc 7000tsv (so bypassing the computer completely).

Thanks for any help you can provide.