I Got my new Q6600 today and popped it in. It runs pretty well. I have not had time to really play with it yet.

As you can see with my liquid cooling heat won't be an issue

Than I ran 4 x pi just to see

It went pretty well.

Then a shot at 3D06. I was very happy with the CPU Score!!

My 4 sticks of memory liked the lower fsb. The timings are nice and tight!!
I will tweek on this machine over the next few days and weeks and just see what it can get out of this chip. Right now it is off to a good start.
Oh and here are the links
3D06 http://service.futuremark.com/compare?3dm06=3193893

PC Mark05 http://service.futuremark.com/compare?pcm05=1114127

WZ