Maybe someone can help me understand this a bit better. I have a MBP with a 2.16GHz CPU. I think it's about 2.5 years old. It has the ATI x1600 GPU. My dad previously had an iMac G5 2GHz but now has one of the new iMacs at 3.06GHz. When running iStat, I can notice an obvious difference in the CPU temperature. I don't think my MBP runs less than 120 degrees idle, while the iMacs were easily under 100. I haven't seen the new iMac while doing CPU-intensive tasks, but the old iMac never got above 140 if I'm not mistaken. As I'm encoding video on the MBP for a DVD using iDVD, it's getting up to 187 degrees. The CPU is using about 125 percent of my processing power -- 200 percent max if you didn't know. The temperature is the same even when HandBrake gets up to about 190 percent of processing. I basically want to know if this is normal. I've been having trouble getting video from iMovie onto a disc, sometimes because the computer completely freezes. I've probably wasted six to 10 DVDs in the process. I can easily convert these things to MP4 video files, but physical discs are a pain. I almost wonder if my next computer should be an iMac and then use my notebook on the go as almost a netbook-style computer since it will be "slow" in a couple of years. I thought iMacs used a lot of notebook components, so I'm confused on why my MBP runs so darn hot. I do use clamshell mode almost all the time with an external monitor, but fully opening the MBP display doesn't do much. good. I also have a USB-powered fan under the MBP that tilts up to give some fresh air under everything. The bottom enclosure is 90 degrees, but I know that heat can rob a computer of power. Thanks for any input!