Hi
I wanna buy an iMac but I don't know witch one is better for me ?!
I do everything with my computer, graphic, music, Internet,....
I am speed crazy, and if my system gets slow, then may be I will going to break display....
Then you want at least the 27in i5 or i7, the 27in are the only ones that come with quad-core. I have the i5 and it is wicked quick. The i7 I hear is great too and more future proof. But to save a little the i5 will do just fine.