hi aceboy,
this may help, or not see what you think, just my thoughts:
i've done abit of recording video on bike footage sony pc9/10/archos with seperatly powered sony ccd camera etc but ended up with atc2k like robs due to small convenient package and less setup issues, also found when mounted on your lid the picture quality is clearer due to your own legs acting as suspension BUT two problems:
1) It was a right pain to always/consistently mount the camera (strong velcro used) in the same place to achieve the same/correct viewing angle ... i've got some lovely footage of the bikes speedo from early testing
2) It was annoying watching the saved footage as the camera view would always swing back and forth as my head did out on the trail, cross roads, see where other riders are, you don't realise how much your head moves/you look around all the time etc.
So I just got an atc2k (less investment in case of crash compared to archos etc and quality is acceptable on the whole, well pound for pound imo but others may disagree ....) and mounted it on the handlebars with cut up inner tube as a spacer/shock absorber. These unclip from the mount if you're worried about its security and also you know its always at the right angle (after initial setup/check footage) when you clip it back on. I used to keep mine in the backpack on rallies, then at the special stages clip it on with freshly cleaned lense. Cleaning I found was best with cotton bud sticks (nick em from your missus bathroom 'stuff'

) which I kept a few in the backpack as sometimes I left the camera on the mount and a quick wipe with a wet cotton bud and the lense was ready. I also made up a 'cover' for mine out of neoprene from an old cutup wetsuit, which protected it from the worst of the weather/rain, the cover opens to reveal the lense and keeps the body clean - i got the idea for the 'cover' from oregon scientific own optional snowshoe for winter weather recording. Also most bikes you can mount the atc on the handlebars somewhere to get a clear shot out front whilst also having it 'out of sight almost' so no one knows, until you show them after wards .... or not as the case maybe

Have fun
Cheers