Well I am using Everest Ultimate Edition to monitor temps on my computer, and it is reporting my 250gb wester digital caviar at 50-55 degrees celcius under load! I think this is rather on the hot side as i think the operating temp for wd's normally are at 55 degrees? So i was just wondering what is an average temp of a wd caviar underload? and if anyoen could recommened any free programs that monitor hd temps so i could varify this temp reading on everest.