for those of you interested in video recording while riding, Archos has just the thing for you.
it records in MPEG-4 and is supposedly in DVD quality (meaning 640x480). it features a built in microphone and remote, the ability to do slow motion and can capture without an extra light source. looks like you will have to mix it up with their 604 media player as well though. the player is already out and runs around 350 USD. the camera should be released this winter for approximately 150 USD.
it's a little on the pricey side, but the media player has a lot of nice features, including a 30GB hard drive. oh and you can get a wireless version of the 604 as well.