Headed to Timberline again today, and took along the helmet cam for a little test. I purchased an ATC2000 (ATC2K) helmet cam, and strapped it on for my first field test snowboarding. So you can see what you get on the first try with a $120 camera. It's a neat little waterproof unit, available at your local REI.
Also, here is a link to the raw video file, in case you have a lot of bandwidth and patience at your disposal. Note the guy who drops in around 3:00