Momentus 5400.6 & Scorpio Blue: Seagate & WD 2.5" HDDs at 500GB
 

At the ~$100 asking price, the capacity and speed of these little drives is astonishing for anyone who recalls paying $300+ for a 40GB 3.5" drive less than a decade ago. These are good times for HDD consumers.

http://www.silentpcreview.com/500gb_laptop_drives