After loads of reading, many calls to OWC tech support and driving around town to find the cable with the bracket end, i was finally able to get down to business. On a difficulty scale from 1 to 10, I would say this was about a 6. The toughest part is the learning curve / confidence that is required. I watched the OWC video about 20 times in a row and couldn't believe how fast he got in and got out. It took me about 15 minutes to get it apart and about 45 minutes before I got the confidence to pull back on the logic board hard enough to get the sata cable in. After putting everything back together I decided to test my newly acquired skill / confidence and did it again. In and out in about 20 minutes this time. An hour well spent! (vs 10 business days turnaround by OWC $170 plus shipping one way from LA) I will be happy to post my instructions (really not different than any others). The only thing I did different was that I ran the cable through the RAM slots so that i did not have to cut into the frame at all. I dont mind running the IMAC without the RAM lid as much as it bothers me to cut into the body. While I was in there, I was happy to see how easy it is to navigate inside. The Superdrive should be a simple swap especially if Apple decides to make a BD Superdrive. The Airpot mini PCIe is really easy to replace giving us the ability to add 2 more SATA ports or even better: http://www.globalamericaninc.com/p1507880/1507880_-_PCI-Express_Mini-Card_USB_3.0_SuperSpeed_Module/product_info.html USB 3.0 It's hard to think that MAC is going to make more changes than this in the next generation. What's nice is that they have given us the connections to upgrade if we want to. Next up is SSD. BTW - If you are in the LA area, I'm happy to help.