I just picked up a 70-200VR and this was the sound I was greeted to...
http://www.youtube.com/watch?v=EMso_21FRCs
this sucks, I have to send it back then find another one. The lens feels awesome if anyone really cares... freaking thing is like a rock. But apparently, the clunking sound are the VR servo's and apparently mine went really bad. I think UPS dropped the box.
Chris