For those who need as much as can possibly be crammed into a 3.5" form factor, the Western Digital WD20EADS Caviar Green is sure to please. While the performance is nowhere near Raptor territory, the sequential transfer rates are admirable given the near 50% drop in spindle speed. An added bonus is the almost eerie silence of the 2TB model. Our drive received many double takes during seek testing, as we truly believed we were benching the wrong device. With huge storage and cool / quiet operation, I see this drive going into many DVR's and media center PC's in the near future.

http://www.pcper.com/article.php?aid=676