Craig, I used two different setups.
On the FJR I use a small 'Bullet' camera, no name brand bought from a security outfit, that claims to have a Panasonic 1/4" CCD, and shoots at 512x582 pixels (PAL) (the NTS equivalents are 510x492). It's 1" diameter x 4" long, and requires a 12v power supply, which I take from a small rechargeable battery (4"x2"x1.5"), although I have also used a '8-pack' penlight battery pack. I have fabricated my own mounts from plumbing supplies that allow me a wide range of adjustments and angles - you can see that I have used wing-nuts for easy adjustment on the road without tools.
I have shot some great 'under bike' footage of the rear wheel/suspension (until I hit the camera mount on the road - only minor bruising to the camera case). The lens is a fixed 3.6mm lens, which is pretty wide-angle and great for close shots, but I also have 4.3mm and 8mm (brings the bikes closer). It's a pain to change the lenses on the road though - well, easy to change, but hard to get it focussed without a big screen to do it on.
I have also fabricated another mount with a RAM ball, and I use this on the handlebar GPS mount, or wherever I want to bolt a ram ball on the bike - for example, on the rear rack so I can video behind me, etc.
I run this all to a backpack, where I carry my Sony Digital8 Handycam. This is a few years old, and well outdated, so if it gets a few bumps it won't break my heart. I carry it in a backpack to minimise vibration in the camera. I also run an external mike, but have to play with this a bit more to get ideal sound recordings. I also use an external LANC remote control to start/stop the camera sometimes, but generally don't bother with that.
Here are some piccies. Most filming done from this mount on the slider, which includes the wheel in the edge of the piccie:
and this angle gets the front wheel/road interface really good:
and the RAM mount, without the camera:
And this is the setup on my Fazer (the video where you can see the indicator in the RHS). I just cut a piece of 1" square stainless steel tubing that I think was once part of a table support (I have lots of 'useful stuff' in my garage) and drilled it so I can mount it in place of the pillion footpeg. I had a heavy duty tripod head (more useful stuff, bought at an auction many years ago) that I bolted to the tubing. The weak link is the 'camera to tripod head interface', so I strapped it on for extra peace of mind, and tethered it to the frame (so if it comes loose it will probably mash up in the back wheel rather than bounce harmlessly down the road. Seriously, I did some pretty severe load testing, so the risk was minimal). Unfortunately I only have 1 piccie of this mount. The lead you see running from the camera is the external mike:
Then I edit the footage and add music using Pinnacle Studio 9 software (now also superseded by later versions). This is reasonable for home DVD authoring, but like all stuff, the more you use it the easier it is. On the 40" plasma the pictures are good enough to get watchers leaning in their chairs, and motion-sick for the queasy.
And fortunately running on the wrong side of the road is mandatory here