I want to be able to sync my flash drive to a folder on my Mac (running Leopard). So say if I work on a Word document on another Mac or PC it will recognize the update and sync my files. I would like something smart enough to realize what has been created, added, or edited so that it doesn't copy all of my files back and fourth every single time. I need something reliable as well. I can't afford to be losing files. Thanks for any help.