I've had my G1 for a few years now and I've been REALLY happy with it. However, the one major drawback for me has been the noise at high-ISO, which means that I really don't like using it above ISO 400, a great pity as I love taking photographs at night. A local camera shop has a 2nd hand, barely-used, body-only GH2 for about the same price as a new G3 and I am torn between which one to get. Obviously, I've studied all the reviews I can online and it is a tough one to call. Any suggestions?