i found this on Powders site:
here is a set up thats only $249 and what the site says about it.
Everything you need to adapt your camcorder in to a helmet cam system! Comes with the awesome new Sony hi-res color 480 bullet camera, a high pickup microphone, 12V battery pack, and one Skullcamz mount. The microphone is adapted to plug into, and share power with, our bullet camera. It has amazing clarity for its 1/4' size. The one battery pack power both the camera and microphone. It takes (8) AA rechargeable batteries (which are not included). The Skullcamz Mount is custom made by us, designed for our bullet camera. Each mount is made of durable nylon and elastic, using Industrial Velcro to attach.
When I was 15 i found a mole on my neck and i knew then that I should try to make a living skiing... - Eric Pollard