So, I bought a ContourHD.
I bought a ContourHD because:
a) It is cheaper than a GoPro
b) The video looks nicer than a GoPro (in my opinion)
What I did not realise, is that the GoPro comes with lots of lovely mounts, and even if you need one that is not in the box, new mounts are reasonably cheap. The Contour comes with a Goggle mount, and a sticky pad. Neither of which worked well with my bike. So I needed a new mount.
After umming and ahhing between this and the Vented Helmet mount I bought the Flex Strap. This invalidates a), because I paid £25 for some pieces of rubber. The FlexStrap is massively overpriced. Far too expensive. Too much money.
The flex strap is literally 2 pieces of rubber and a small piece of plastic.
Don't get me wrong. The flex strap redeems itself by being quite a good mount, and very versatile. It works. You get quite stable video, and could attach it too lots of different places, which is nice on a bike.
A much fairer price would be £10 -£15.