OCIA.net has posted their review of the Western Digital Caviar GreenPower 1TB HDD

As various components become more advanced, they also require more power to operate. According to Western Digital, the average 1 TB hard drive has a power consumption rating greater than 13.5 watts. Western Digital's new GreenPower drive, which we will be looking at here today, claims to shave 4-5 watts over typical drives in the same category. Any power saving is a welcomed addition, but will the drive's performance be hampered to accomplish this?

Western Digital Caviar GreenPower 1TB HDD Review