Is there an interest in a high quality in car camera that would record directly to a disk drive? You could play the disk drive like a vcr from the front controls or read the files as either Windows movie Files or Quicktime movies on your computer. It would record 6 hours of DVD quality video using the enclosed battery. It would be expensive (around $2,000) but would be pretty cool.
I have 9 of these drives available from a failed TV poker show, they were only used once to record the hole card shots. I was looking for a way to recoup my costs of the drives and could build the systems with the cameras we used in the poker table.
Kenyon