I love my Contax G2 to death, though I wish there were a nice 50 f/1.4 for it. The 45 f/2 is a great lens, sharper than the Summicron and FAR less expensive. Check out ContaxG.Com for a lot of great examples of people using that camera. Robert Frank, Wm Eggleston, and Luc Delahaye can't all be wron about them....

I have a Canon G-III too. Nice, quiet, but I'm always concerned I'll break it. Then again it cost $30.