Here's one with the atc helmetcam. Way too big in fact to do some serious racing with it :-)
The clip is half the original speed.
http://www.rc-offroad.be/pictures/20...et/helmet3.htm
Here's the full speed clip:
http://www.rc-offroad.be/pictures/20...et/helmet1.htm
Also note the pics on top of the page, amazing what this thing captured :-)
Quality of the oregon is not that great... It says it's 30fps, but in fact every 4th and 5th frame are the same. This results in jerky motion especially visible in slow motion.