Got a Muvi HD10, waterproof to 30m with case, remote with giant buttons for gloved hands, loads of different mounts, screen on back, also takes stills, hdmi out, 1080p. Cheaper than GoPro, and the HD7 (720p) is even cheaper still. Takes micro sd cards, which a 16gb will record 10 hours at 1080p, but the battery only last for 4. I use mine mainly with a suction mount on the tank, it sucks like a sucky thing and doesn't come off even after over 10 hours stuck.