Hi shiznit, I bought one from ipixie, with GPS and records in HD, it was over the £100 mark but worth every penny when you have an accident that is not your fault, and I learned this from experience last December when a car came out of a side road into the side of me.
my insurance blamed me until they saw the footage.
if you do get one, I advise against telling your insurance for the poxy discount they give you, as if by chance you don't have it on one day and something happens, they will use that against you.