Hi, After being reading macrumors for two years and I have finally purchased a new Penryn Macbook 2.4. So far my only criticism about it is related to the heat and fan noise. When I use it for non intensive applications it is usually fine, being the heat at the CPU around 50C and the fans noise barely noticeable (although if everything is in silence you can hear them in the background as a fluorescent light). The problem comes when I do more intensive applications like playing WoW. Here the CPU heat goes to 80C where the fans reach the maximum speed producing lot of noise and keeping the temperature between 73 and 80 C. My problem is not only the huge noise made continuously by the fans while playing, but also that I cannot imagine what would happen to the laptop after one year playing frequently. Do you think this is normal? fan noise and heat 70-80C playing? (running on battery with maximize battery settings) Is there any way to underclock the CPU force it to run at slower speed while playing? I am sure I can play WoW (or other old generation game) at a decent frame-rate running at half of the CPU speed. It is really a shame that such a great computer has this issue with the heat.