I have a customer with a late 2011, 21.5" iMac. He was having beach balling on it so I ran a test with Scannerz (http://scsc-online.com/Scannerz.html if interested). Scannerz identified about 3 sections with bad sectors and tons of sectors that were weak. I told him we should replace the drive because I felt any attempt at repairing it would be futile. I suggested he toss the optical and let me put in a home brew fusion, but he needs/wants the optical. I suggested a big SSD since he needs over a gigabyte of storage but when he saw the price he said that whole unit is even worth that much anymore. I'd certainly like to get him something faster than those lame HDDs that Apple is putting in their units and I'm thinking along the line of hybrids. Does anyone have any suggestions or recommendations for a replacement?