The hard drive on my Core 2 Duo, 2.66 20-Inch (Early 2008) iMac died so now I boot up off an external SSD via USB as a temporary fix. I don't really want to buy another iMac nor do I want to put a new HD in a 7 year old box, and it occurs to me that I could just get a new Mini running Mountain Lion or Mavericks, and use the old iMac as its screen. My question is: is that advisable and, if so, what would be the best way to do that? Would I need to buy any special cables or adapters? Would there be any limitations that a newer screen wouldn't have? Thanks.