that Pentium D runs really hot when you oc it... go with something crazy over kill
all these are good.
depending on who you talk to and who replys to this thread, your going to hear a lot of "this ones better" or "that ones better"
If anyone of them are better, its marginal at best... It's pretty much what you want to stare at in your computer....
I got 4.5ghz out of a 805 on water, not sure how much you'll get out of it on high end air.... 3.6 - 3.8 maybe??
Just be careful when you add voltage to that thing!! it gets hot real quick. i've herd horror stories about certain motherboards not catching the thermal shutdown on these cpus and end up frying them.... rare cases, but its safe to be aware about it....