If you want just a standard dash cam, they're pretty cheap. Also, there's an ap for that
I was looking around for a HD one but they sell for a lot of money. Found one on Ebay for $60 that normally sells for $400+ retail. It's 'new-ish' but I think I'm going to take my chances with it:
http://www.ebay.ca/itm/ws/eBayISAPI.dll?ViewItem&item=170789083412&ssPageName=ADME:L:OU:CA:1123
If you invest in 'GoPro' sports/helmet cameras or something similar, they will work as well.
Threaded Mode