Got my new MBP SR 2.4, 160gb 7200rpm a couple of weeks ago. Installed iStat immediately. Initially my computer would idle at about CPU temps of 40-45C. Just browsing on Firefox would not raise the temps much. Recently, CPU temps are more like 55-60C with just internet browsing. Last night I left the MBP on but attached to the charger with no applications running. Woke up in the morning to find the CPU temp at 55C. Is this too hot? Thanks for any input!