Between 21.5" and 27", 2010 and 2011, i5 and i7, Thunderbolt or not, refurbished or new, education discount or not, $100 education promo card or not.... So many options, and I don't know what to do!!! I want a 27" iMac that plays Starcraft 2 on ultra settings... is that possible without paying $2,000? I'm looking to be as budget conscious as I can, but more important to me than budget, is getting the most bang. Its hard to look at a refurbished 27" vs a new 21.5" because the graphics are better AND the resolution is smaller... so it's going to blow the 27" out of the water, right? Maybe I do want the 21.5" after all...? I need some advice... and it's driving me crazy because I'm trying to figure out what would be a better deal, refurbished or school promo, etc, etc, etc... I don't know what kind of processor I need, so I sure don't know what I want... I use a 11' MBA and have an external 22", but thats my only computer! PLEASE please please help... give me your advice, because mine is all over the place... Thanks!