Hey guys, I am an apple guy new to the forums looking to find some advice before buying my first iMac. Dont know what to do!!! So please try to help me make a good decision. I currently own a 2006 acer pc and a dell inpiron that is kind of broken, AND 2000 dollars saved up for when the 2011 iMacs came out. I was planning on buying the 27 inch i7 imac at bestbuy to be able to finance it that way i wouldnt use up the $2000 in a heart beat in case i needed it later on. But, best buy is not selling any of the i7s which is a bummer. Now im thinking if i should go with the 21.5 i7 and upgrade my ipad with the rest. bottom line. Other than the display, how big a differece is between the 25.1 inch i7 and the 27 inch i7 in terms of performance and speed? would i be better off spending the 2000something dollars? Thank you!!!