Ok, guys, here's my dilemma: I've got a mid-2011 27" iMac 3.1 with 20 gigs of RAM. I want to add a Samsung 850 SSD to speed everything up, but digging way into this thing makes me nervous. If I replace the SuperDrive with an SSD, it's not that involved, and the install would be a piece of cake; however, the optibay on these iMacs is only SATA2. Installing it via the 2nd SATA3 connector is a much more difficult job, and I'm not totally confident in my abilities. So, what do you think? Is the extra speed worth the added headache? Or would I even notice the difference in speed? Thanks for the input, everyone!