Hi, My dad has been using a pre-intell iMac model for years now. It now really needs to be replaced because ever more software and plugin's can't be updated anymore because of it's old processor, rendering his Mac useless for his emailing and web surfing (that's what he uses it for mainly) We managed to get a second hand newer iMac Model (aluminium 20" early 2008) which is capable of running the latest version of Mountain Lion. But now i read that it is not possible to run Migration Assistant to move over his old stuff to the newer iMac because Mountain Lion does not support this when the old OS is pre- 10.4 (http://support.apple.com/kb/HT4889) To figure out which of his files to transfer manually is a no go area for me, since it is not my machine, and my dad is not that computer-savvy (he's 77 ) and keeps stuff all over the machine, not only in the designated folders - although he knows to stay away from system folders- phew! So i could use advice on the best way to go about this. I figured if it is possible to clone the old machines whole startupdisk with the old OS to the newer iMac, boot that machine and start updating the old system from there (since this one has a processor than can run newer systems) Would this be the best way to go? I need some advice on this.