I spotted this recently on the Woolworths website...
ATC2K All Terrain Waterproof Digital Video Camera
Now: £99.99
Description
Calling all extreme sports enthusiasts! This smart All Terrain Digital Video Camera is all you need to capture those thrilling moments, whatever the weather. Whether skiing, snowboarding or cycling, you can film it all on the ATC2K and play it back on your TV at home. You can even edit the clips on a computer.
Functions
Capturevideo clips with sound
Three selectable resolutions (640x480, 320x240, 160x120)
Video clip file format AVI - 640x480, 320x240, 160x120
Two frame rates (15fps and 30fps) for all three resolutions
NTSC/PAL A/V out for showing the video on TV
Built-in memory and SD card slot for memory expansion
Low battery detection
Power-saving management
Firmware upgradeable
Features
Multiple mounting design
Size: 109mm x 45mm x 45mm (approximate and without mounts)
Professional helmet cam-looking design
640x480 VGA CMOS sensor
32MB internal memory (NAND flash)
SD memory card support up to 2GB
Black and white HTM LCD for status display (VA = 20 x 15m)
USB interface (acts like a memory stick mass storage device)
A/V out interface
Keys - 3 buttons
Shutter(movie only)
Menu
On/Off/Enter
Buzzer for key tones and other alert sounds
Internal real-time clock
Requires 2 x AA batteries
If anyone is interested in looking at it, then go to...
Buy ATC2K All Terrain Waterproof Digital Video Camera from Woolworths.co.uk online shop
I don't recommend or endorse particular products but there have been a number of requests for bulletcam type camcorders over the past few months, so if you are involved in extreme sports and want to post your adventures on YouTube or similar, it might be worth looking at. It is completely useless for making 'real' videos with as it only shoots up to a screen size of 640 by 480, well below the 720 by 576 required for 'real' video work.
Cheap bulletcam 
Linear Mode
