Over in the 2009 MacPro world, we have been seeing excessive CPU heat and voltage use with the all i7 CPU's. Playing music through Quicktime or iTunes, most browser based flash content or displaying video from a webcam, like in Photo Booth or iChat, results in a 30c rise in CPU temps. To observe the results, we've installed istat menus. Are there any i7 Quad owners out there that can install istat menu, check the idle temp and see if it climbs 20(c)-30(c) when playing music? It takes about 5-9 minutes for a mac pro to jump 30(c). This issue is not effecting any non i7 mac. In addition to the heat, we are experiencing increased fan noise to compensate for the heat.