I'm a hardcore gamer that is a stickler for quality, and CRT is still the gold standard when it comes to a perfect image (not to mention the ability to run many resolutions without any quality degradation), but LCDs have come a long way. I'm likely making the switch to Mac (using Boot Camp for the few PC games I play, I mostly play consoles). The iMac is the best fit for me but I'm concerned, when new games come out that exceed your system's specs you generally turn down the resolution to procure a quality image with a decent frame rate. 1920x1200 is a very high resolution with a lot of pixels, how much worse does the image get when turning the resolution down? Since it won't be at its native resolution I've heard that lowers image quality, but I have no personal experience since I've never used an LCD. And are there any other side effects?