Wow Darko, you've been such a great help. I called B&H today; they also recommended the first one. Do you have any recommendation as to what kind of dolly should I get? I urgently need one too.

Since I have dolly made in local machine shop (still great for me -dirt cheap, but fully functional) I havent look around for "real" ones ...anyway i think you should be aware of dollies with plastic wheels cause these can provide very bumpy and unpleasant ride. Go for one with rubber wheels.