Onboard Camera (Which One) ?

[Lewis]

Right guys, i am wanting to get an onboard camera that i can attach to the side of my crash helmet for my go-karting -and sometimes when i am on my grandads motorbike-.

The camera needs to be:
*easy to use
*good quality
*reasonably small
*around £200 (Max £300)

I have been looking at 2 main manufactures (Go Pro +Contour)
More specificaly the Go Pro Hero 2 or the Contour+

What do you guys think ?

Thanks