http://www.google.com/products/catalog?client=safari&rls=en&q=kodak+playsport+zx5&ie=UTF-8&oe=UTF-8&cid=11180404340041643938&sa=X&ei=66IRUJvKDqSm6wG5xIDwDw&ved=0CGYQrQQ
These seem to work pretty well. I know some guys that ride off road that use them. If they handle off road riding without making jerky, unwatchable videos then riding on the street should be fine.
Here's a video shot with a Kodak Playsport ZX3. The link I gave you is a ZX5. From what I've seen the ZX5 has better image stabilization.