Hello, I am deciding between the high-end 21.5" model iMac and the low end 27" model one. I will use my iMac mostly for Photoshop, Flash, iPhone development and gaming on Windows. I went to the Apple Store and tried both iMacs, the 21.5" iMac's screen seems smaller than my current 17" iMac's screen, but it is ok. The 27" iMac was big, I did not use it enough to notice if it was uncomfortable for my eyes but I was standing like 10 cms away from the screen. My desktop is about 75cm wide so I think I have the space required for the bigger screen. My uncle has the 21.5" iMac, he previously used a MBP and told me that the screen made his eyes red and I should not buy the 27" one. Of course he works with the computer about 8 hours a day since he is a designer, I am not going to use it that much, maybe 4 hours in weekends and 2 in weekdays. As for flash, photoshop and all that stuff, I know the iMac can handle it more than well since my current one runs them perfectly but I wanted to do some gaming in this machine. I am not sure if the 27" screen will make the game run slower because of the higher resolution than in the 21.5". Which iMac will have a better performance in gaming? So which model should I go for, also consider that in my country the high end 21.5 iMac is 2272 USD and the low end 27" iMac is 2626 USD. Also if this helps, I am 1,80m tall so I think height won't be a problem and I stand 90 cm away from my current 17" iMac. Thank you in advance for reading all the story and I know threads like these have been made before but not in the same context. If you have any gaming benchmarks to share, your welcome too. Thanks again!