Well I finally made top 20, so I might as well introduce myself. I have a C2D rig and a PS3 folding 24/7, along with a few other computers on and off. When intel releases their 45nm quads, I'll have one of those on the job too.
Also, I haven't had a problem with the PS3's cooling. Just make sure you don't let dust build up around the vents.
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