Not purchased as such but i collected my Canon 5D Mk2 camera body from LCE this morning after it had to go to the Camera Doctor. The camera started throwing a err-30 error message every 100 photos and the only way to reset it was to remove the battery, thankfully it was JUST under warranty (bought used from LCE) so didn't cost me anything. Looking at the repair sheet the power & Control PCB and shutter mechanism have been replaced at a cost of over £500!