Did you find a camera yet?
I'd suggest looking at a motorcycle forum for their setups.
The skydiving ones are usually HUGE, bulky pieces... at least the two my buddy falls from the sky with are.
There was a site called conecam.com that had some cool options for remote mounts for motorcycles and such. I can't find the site now.
Here's a link to the setup:
The Temple of VTEC - Honda and Acura Enthusiasts Online - Articles - Cone Cam Review: Introduction
Another site:
www.helmetcamera.com - Home