My notebook computer is about 5 years old, and while it is still running fine, I am thinking about a replacement. Current system has an Intel Core i5 (Sandy Bridge generation) which has a TDP of 35W, but it has always seemed to run hot. Even just browsing the web can cause the fan to spin loudly and vent large amounts of hot air. Cleaning the heatsink/fan assembly did not make any difference. Has anyone bought a computer recently that runs cool and fairly silently? I prefer Windows computers. I love my iPhone but I just don't like MacOS X.