I'm just now using
Windows Live FolderShare 
and I'm liking what I see. Granted, I'll need some time to ensure it works as intended, but I have high hopes. I've tried a couple of other tools that didn't work out as I hoped, so I'm keeping my fingers crossed with this one. With that, when I create a sync'ed directory, I really wish I could just type the path to sync. If I know the path I want to sync, it's somewhat annoying if I have to browse thru the directory structure to find what I want. I should be able to type the path, which can then be validated. This would make sync setup quicker.