If you want a cheapo alternative, Ive had good luck with the following - 1 hour battery life, charges via USB, "HD" (720x420), stereo audio.

http://cgi.ebay.com/808-3-Spy-Camera...item230cf3f4c6

I know it s not as nice as the "Go Pro's" but the finished videos are pretty decent - all for $10. Also, the camera is the size of a keyring and fits snugly between the vents of my helmet. I highly recommend the camera!

I would upload a video but the files are over 1 GB in size - how do you "Go Pro" guys upload your videos?