Hey! Quick question: I'm considering buying an iMac this week. My question is: What is the difference really between the 1799$ (1) one and the 1999$ (2) one? I see that the processor in (1) is 3.4GHz and the one in (2) is 3.5GHz, and that the Graphics Card is a bit different. Question is: How different they really are, how much do the extra 200$ really worth?