I will be transitioning from my Sigma SD9 system to a Canon setup real soon now, and I am looking at Canon bodies. So, should I go for the 30D (it being new, with latest firmware, and spot metering) or should I save almost $300 and get the 20D? Did anyone here have a chance to use both cameras? Any suggestions? LCD size is not very important for me because I rarely review pictures on the camera itself. I am mainly concerned with questions of image quality (is it really the same?), reliability (I think I have heard bad things about 20's shutter?), ergonomics, and future resale value.