I recently got the chance to buy a 27" iMac 2011 for what I think was a great price £200. I was planning on using it as a second display for my mac pro but I discovered that target display on an imac 2011 for some ridiculous reason only supports thunderbolt to thunderbolt despite the port being backwards compatible (typical apple BS). I assume nobody has come up with some hack/workaround? I really don't want to sell it as it is such a nice looking computer but I don't have much use for it other than as a display!