I am going to buy a 2TB hard drive to use in an external enclosure. I am wondering what brand and model to buy. I’m about “sold” on the WD Caviar, because from what I’ve read the Green version is quiet, cheap and runs cool. However it only has a 3 year warranty while the Black version has a 5 year warranty. The downside is that it runs hotter and louder. I’ve heard that the Caviar Green driver has higher failure rates…so is this a reason to avoid it? Which one is really the best?