If any one wants to get a HD camera that records to memory card on the cheap, check out Aiptek (
http://www.aiptek.com/). I picked up a 1080p camera from these guys for like $150 last year. The quality is acceptable to good, just not fantastic. The nice thing though is that at $150 (probably cheaper now) you won't be particularly worried about breaking it. For instance, I rigged mine up to a beech kite at the Outer Banks last year and got some pretty cool video out of it. I'm thinking about buying another and tearing it apart so I can separate the camera part from the rest of the electronics. That way I could mount the camera in all sorts of crazy places on the bike, like the swing arm. Should make for some pretty cool video.
Actually looking at their site, the newest one has image stabilization (a f*ck fantastic feature) for $200. Hmm...