I have one iMAC at home and it runs very hot for a computer. I have discussed this with Apple and they claim that it's designed to operate in this environment. Heat is a terrible enemy to transistor junctions and the less of it the better. So I have a question for those of you who are closely familiar with iMAC's. Is there a means to monitor the temperature inside the cabinet with some software/hardware? I'm curious I have always cooled off my electronics equipment, forced air with high power RF linear tubes in amplifiers I built and conduction heat sink cooling for HP transistor amplifiers and the likes. I have considered utilizing some 40mm muffin 5vdc fans attached to a plenum forcing air from the underside of the iMAC case up through the internal areas and out the top vent. Anybody experimenting with this sorta stuff? My rule has been, "too hot to the touch", to hot period, cool it off. Comments, suggestions welcome and appreciated. OH! at work we use several Pros and an iMAC for video editing and one can almost fry an egg on the top aluminum frame. That just doesn't go well in my book but again; Apple says "No Problem". Truth or Not?