What a great pressie. How much are you looking at paying? My friend has just installed one in her car after a collision where the other party is claiming is her fault (I was in the car, it wasn't her fault!), I think she paid about £120 for the cam.
Anyone looking to buy a cheaper car present, look at these:
http://www.deerwhistles.co.uk/
Deer are a pain the the asre as the jump out of nowhere. In my neck of the woods, we have to swerve to avoid deer at least once a week. I'm getting one for Mr AC for a stocking filler