Im wanting to look into buying my mom an iMac for Christmas this year, she has a pc which she always complains about and always talks about how much she wishes she had the money to go out and buy a mac. I am looking at a brand new one from Apple for $1200 with a 21.5" screen, but with her current computer she is sporting a 24" monitor. I want to buy her the 27" but its several hundred more, do you guys think itd be worth it? How does the screen resolution compare to one another? I just bought a 13" UBP and the screen resolution was the only real difference I saw between it and the 15" and im completely happy, I just dont know how happy shell be downgrading. My mac is more portable since its smaller then my last, but hers will always sit on a desk. I am just looking for opinions right now, we still have awhile until December 25th!