I am looking for an iMac (either top-specced 21.5" or 27" - haven't decided yet) I don't have a specific time frame in mind, so I could wait until WWDC. Do you think the new model would come out then, or would it be a longer wait (probably for Haswell) Will the upgrade be significant enough? Sandy Bridge to Ivy Bridge was only roughly a 5-10% performance increase so will Haswell (and the wait) be worth it or not? Another consideration is DDR4 memory and a retina display. I am looking to sell my PC and switch over to Mac in the next 3/4 months ideally. Also I noticed the other day that Apple took the 'New' designator off the Late-2012 iMac, does this mean a refresh is coming?