I am usually a very light user but decided to get the 15" MBP anyway with 2.66 ghz 4gb of ram. Usually I never even hear my fans but today I was converting some small video files to M4V to watch them on my iphone using handbrake. They were just 22 minute episodes of seinfeld. So Handbrake is using up like 92-95% of my CPU processing and my fans are going crazy and being really loud.... anyone else experience this? I'm a little worried that my laptop is about to blow up right now lol.