But I want to copy my current HD* exactly as it is ( including it's ML OS - because some of my software that I need won't run on Mavericks ). Whats the best way - I assume all new MBP comes with Mavericks as standard. So should I wipe the disk - then install ML fresh - them migrate from my old MBP hard drive? Does the SSD & retina display require a 'special' version of OS X ( drivers for SSD and display for example ). * Traditional 750GB hard drive, not SSD.