I have 3 macs that I would ideally like to keep as absolutely synced as possible: a 2010 i7 17" MBP, a 2011 i7 27" iMac, and a Hackintosh. They were all restored from the same Time Machine backup, so at least recently as 2 months ago they had the exact same contents, from apps to documents to settings (that was compatible with the machine). Currently I'm using Chronosync to keep the Desktop synced as I keep most of my work there, but I'd like to sync, well, as much of everything as possible. I do basically the same job on all three (video and graphic design) so if I install apps on one or tweak settings on another I'd like it synced across the rest. Which folders are safe to keep synced among the Macs, and which aren't? Applications? Library? System? Etc.