I'm linking to the two 27" models that Best Buy sells. Both Core i5 (3.1GHz vs 2.7GHz), the higher end one has the 1GB graphics card and the other has the 512. http://www.bestbuy.com/site/olspage...ductString=1218343209949*1218343208681&catId= How will these machines compare to my Core i7 MacBook Pro from June 2010? Even though these two iMacs are i5, they should be significantly faster due to Sandy Bridge, correct? Specifically I use Photoshop, Lightroom, and Premiere Pro A LOT, and I'm thinking of selling my MBP for the faster performance and larger screen for design work. thoughts?