My wife does a lot of video editing and photoshop on her 27" iMac and was complaining that it was just getting slower and slower. I told her if she gave me an open checkbook I could make it so it never bogged down again so she did and this is what I did. Now it's like a brand new machine that will gobble up anything I throw at it. I LOVE IT!!!! Before: Early 2012 27" iMac Core i5 2.7GHz 4GB 1333MHz ram 1TB Seagate 7200RPM HDD DVD SuperDrive After: Core i7-3770s 3.1GHz 16GB 1600MHz Ram 1TB Fusion Drive(256GB Samsung 830 SSD+750GB WD Black 7200RPM HDD) Panasonic UJ-235 Blu-Ray Superdrive Fresh install of 10.8.2 Spent about $800 but I figure that 800 is much less money and that I would have spent if I bought top of the line when we purchased this when we did and got more for my money. So far pretty excited about it.