I have just bought a MacBook-and it is wonderful-no mooing or anything. However, there is one small problem-heat. I have run some tests and its maxiumum seems to be about 78°C-is this normal (this was while importing through iTunes w/ MP3 encoder and Cinema 4D rendering. Thanks! EDIT: It seems to idle around 56°C-although this may not be entirley accurate-I am working in Pages and Keynote.