While researching my potential iMac (still can't decide between the GT 120 or 130) purchase I've ran across a lot of whining about the current iMacs not being updated to quad core processors and better video cards. Some of these people should have been around when we paid $5K for a whimpy SE/30 running @ 16 MHz! Anyway, one of the things attractive about the dual core iMacs is less heat and less noise. Do we really want a fan running and all that heat coming out in our face or am I wrong in thinking the quads would produce more heat and noise? Also, in my analysis of how these newish processors actually work, most iMac users won't even be taking advantage of the extra cores. Right?