I play the Sims on my Cinema Display every day, as well as Diablo II, Quake and UT. I will never forget when I loaded up Diablo II for the first time on my Cinema Display. I was just blown away, my Necromancer is literally 3 inches tall, compared to the few centimeters he was on my 15" Studio Display.
The Sims looks extremely well on the CD as well. You get the black bars on the left and right but 800x600 and 1024x768 look great. I play The Sims at 1024x768. When I get the GeForce3 in my machine I am going to get Quake as close as I can get it to the native resolution of the CD and see how it plays/looks.
