I just came back from the Apple Store since I wanted to try out the 27" in person. It was sitting side by side with the 21.5" model. The resolution on the 21.5" screen is perfect and I know that bigger screens have an increased resolution but they increased the 27" a little too much. It gets to the point when I'm viewing a website, I feel like I'm on the outside looking in. When I view a website on the 21.5" model, it is right there in my face. I tried viewing a picture on the 21.5" screen and it appears much smaller on the 27" screen. Why didn't they proportion the resolution on the 27" so that it will display it at the same size as the 21.5" screen, but obviously there will be a lot more open space in the surrounding desktop because it is a much larger screen. The problem with the 27" screen is that you have to sit up close when viewing websites, but then sit back when playing a full screen game. Almost to the point where I feel I have to physically move the iMac back. This wouldn't be a problem if websites weren't so small so I can always have the iMac at a far distance. Just wanted to give a heads up to anyone who is blindly purchasing the 27" model. It is a shame because the 1080p display is beautiful but I wanted the larger real estate so I can view a website while having a movie in the corner and whatnot. On the plus side it means I will save $800 by purchasing the base 21.5" iMac instead of the top 27" model but I really wanted that Radeon HD 6970M.