I run at Conroe E6600 because when I built my computer, AMD didn't seem to have a good offering... if I rebuilt now, I would lean towards one of the Phenom processors
I am getting a Intel E8400 because it gave me enourmous value for money ofer AMD, but I live in Europ and with the Euro prices are different there. But most of my friends with good computers have Intel and they never had any problems with it.
@Volcom, do you have a guide for your that overclocking somewhere?