If anyone is interested in buying a cheap dash cam my mrs spotted this one on the weekly shop in the Special Buys section.
We bought one yesterday for £29.99 reduced from £39.99 from the Redditch Aldi. When unboxing it, it does seem like a pretty good piece of kit for the money. It has all the features that a basic dashcam should have, like continuous recording, G-shock sensor and HD resolution and it comes with a 32gb memory card, which is unheard of as you normally have to buy this seperately.
Can't comment on the footage quality yet, I'm going to fit it in the car tonight, but so far so good especially for £29.99.