I took my Canon 5D Mark II in to get it repaired. As it turned out the guy behind the desk knew what to do to fix it and he did it there and then. Not only did he sort it out he also gave the sensors a quick clean for me too....there was no charge and it was done in minutes. He explained what I'd done to loosen the piece of perspex near the sensor. I bought a few bits of equipment whilst I was there....a black back cloth, a white back cloth, a spare battery, a new compact flash card and some ND filters. I was paying with vouchers (I had them in £50s) as they can't give change they worked out a discount so that I didn't lose out. I didn't feel rushed in buying anything, the guys were extremely helpful and I will be back again to look at the large displays. I was really impressed with the range of stock.