I'm not sure if this is possible on Mac vis native or 3rd party app. I want to mirror folders. If I add/remove/change a file in one folder, I want it to make the update to another folder (which I would have setup as a mirror of the original folder) without me having to initiate the sync. I would like to keep an exact replica of my documents folder and a few other folders on my mac, my thumb drive, and my iDISK without having to copy everything to each disk. Anything in existence that can do this?