I am mainly asking this to see if the new USB fan I bought is working better or if I'm just imagining it. I had a 2-fan one that cost me $6. I broke one of the fan blades, and I also wanted extra USB ports. So I bought a new one today for $20 that has 3 fans and 4 USB ports. Before I used any fans, I can recall my CPU temperature topping 170 degrees, maybe hitting 178, on the readings with iStat during a HandBrake encode process. I have been using HB for a couple of hours now with the CPU usage at 190 percent (out of 200 percent for 2 CPUs, if you didn't know). The temperature has pretty much stayed near 165 degrees. As my sig says, this is a 2.16Ghz unit that I bought in April 2007. Hope to hear back from some people. I really hope I haven't pretty much wasted $26 on something that just makes me feel better.