[rsvRadtke]

Check out this link for helmet cams.
http://www.bulletcam.com/index.htm

I met one of the guys in MN and I think the company is based out of MN. They seem very reasonably priced and there are some cool video clips on the webpage.

 

[Kevin Rowan]

In my opinion, this site has one of the best cameras, yes it isn't cheap, but you can run the dam thing over with a truck with the extreme case thing a ma bobber. just my .02
http://www.helmetcamera.com/index.htm