Apart from the worry about looking a bit, y'know, wearing one I quite fancy the idea but god they're expensive. I'm not totally convinced yet but some of the results I've seen from the chest ones are quite good.
Are GoPro the only ones worth bothering with? Is the white version upto much i.e. is it worth the extra cash for a silver/black one? Chest mounts £35, seriously? Wheres a good place to buy one?