Just purchased the new 27" iMac quad-core i5. Am I somewhat "future-proofed" for the next 2 years or so? I probably could have lived with the i3, but wanted to have quad-core if it is going to be mainstream on all Macs in a year or 2. Too bad that does nothing to prevent the attraction to new hardware With this iMac design coming out last October, when do you anticipate the next hardware redesign? Seems like Apple goes with a 2-2.5 year cycle. So, Winter 2012?