Just when I thought I would have to write a bookmark sync tool for my machines, I stumbled upon Foxmarks. It was like someone read my mind of the design I had thought and just coded it. Brilliant, thanks Foxmarks you have saved me weeks of coding & deployment! I am a happy user of it, it sync my bookmarks across machines effortlessly.
Recommendation: Dump google synch, del.icio.us, tag for Foxmarks. http://www.foxmarks.com/