helmet cams

anyone have any thoughts or suggestions on a good helmet cam. i am looking to buy one and can't find any solid info on which ones to buy or stay away from.....

I have been considering a helmet cam. I would love to do what tedshredtrails is doing, but I just got my similar Canon camera and am worried about wrecking it.

I was wondering what the minimum requirements would be for a camera setup. I've been looking at one that does VGA quality at 30 frames per second from Oregon Scientific. It seems like this fits with my budget and needs, but I could be wrong.

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Since we just added video to YourMTB.com -- and Walker's been posting some of his video clips on his blog for a while -- I have a question about helmet cams:

Does anyone know of effective ways to limit or eliminate wind noise? On most of the helmet-cam video I've seen where sound is included, you not only heard the rider's heavy breathing, but also on downhills the rather loud sound of wind on the camera's microphone.

Any tips for avoiding this?