Anyone here know if there is big performance difference between similarly equipped Ivy Bridge Dual Core i7 Processor in MBP 13 2012 model compared to Quad Cord i5 2011 Model ? I need some feedback for LR4+CS6 usage. No gaming so dont care about that aspect, Will be doing some editing in iMovie & Slideshows in Aperture. My current config is 2010 Core2Duo 2.4GHZ MBP13 equipped with 256GB SSD+8GB RAM. I know it is easier to upgrade MBP to SSD compared to iMac so need some advise as I'm sick and tired of keep waiting for 2012 iMac that is like never happening.