I just started up Folding@Home, and joined the Popcap team. I'm the fourth member. And /finally/ Arcturus's idle cpu percentage, for the first time I've ever seen, drops below 75%. With four FAH processes running at once, I'm hovering around 60% CPU idle. Heh.
edit: I managed to get down to 50% by running 'periodic weekly' at the same time.