My head mounted camera that 
(e:naturephoto) 's suggested when we were chatting one night.  It seems pretty awesome. 
The package reports that it can be used up to 3 meters underwater and has some people scuba diving with it.  It takes a standard memory card and uses standard usb and has a tv hookup.  It is the epitomy of standard.,  I cannot wait to see what version of movie it makes.  The package reports it record at 640x480 at 30fps.
It is weird to have a camera without a viewfinder but it rocks that you can attach it to your body and that it costs only ~$120.
What is silicone grease and why don't I want to eat it?
Here is a video from it.  It is about 800k which is quite tiny.  I makes standard compliant avi files that works in both windows media player and quicktime.  The camera simply mounts as an external drive just like a usb jump drive with all the videos on it - without a driver or install disk!  I think that is a miracle.  However, the videos look really bad in low light as is expected for $100.
::Download Flash Video::
I had no idea you could play checkers there. the more you take pictures and try things out with the camera the better you will get.