Yeah, this machine is way behind the times. There have been some misfeatures and bugs in newer versions (encountered on work computers) that I've tried to avoid by staying on Mavericks, but it's finally gotten to the point where I can't install some software/upgrades due to the older OS version. Could someone please help out by answering a few questions that are still holding me back from starting the upgrade process? 1) If I take a bootable backup using SuperDuper before the upgrade, I can restore from that and go back to Mavericks in a pinch, right? 2) Will my non-subscription versions of Photoshop (CS6) and MS Office (2008) still run properly? 3) Should I do a completely fresh install and migrate, or an upgrade? (Keeping in mind I have a ton of data and config that I don't really want to have to restore after the fact; but would also like to get a clean system.) 4) Is there anything else I should be asking or keeping in mind regarding this upgrade? Thanks for your help!