Laurus has an Instructable and video of a DIY Bicycle mounted steady cam project – “I wanted to shoot some video while riding my road bike, but didn’t want to deal with a helmet mounted camera and of course I didn’t want to hold the camera in my hand. An initial attempt at mounting the DV camera was totally unsatisfactory, so my next step was to build a camera mount that would absorb some of the shock providing a better quality video.”Link.