Hey guys so my wife and I recently split up. Along with one of the cars she also took my primary editing PC as we are both professional photographers. Im on somewhat of a budget and have been eye-balling the Imac's for about a year now. Im currently attempting to run LR4 on my 4 year old MBP duo core and it is a pain in the rear. There is no way that this MBP could batch process let alone handle most of my file sizes. Plus I need atleast a 20" screen to edit on. My primary needs are to be able to batch process an average of 1000+ raw images into JPEGs with minimal editing from my events. I don't game at all on a computer. So a GPU isn't of any importance to me. I just need an affordable mac and in a hurry. The base 2011 Imac is right up my alley. Plus BestBuy gives me 60 days to try a product or replace it if a new one is released. My game plan is a 2011 base imac with a ram upgrade to 16gb. Then backup to thunderbolt externals. Also if I decide to later down the road, exchange upto a 27", is the ram compatible between the 2 models?