If you can pay 6.5k for 1Tb HDD, WD Caviar Black is the way to go coz:
# Dual processor - Twice the processing power to maximize performance.
# 32 MB cache - Bigger, faster cache means faster performance.
Rock Solid Mechanical Architecture
# StableTrac - The motor shaft is secured at both ends to reduce system-induced vibration and stabilize platters for accurate tracking, during read and write operations.
# NoTouch ramp load technology - The recording head never touches the disk media ensuring significantly less wear to the recording head and media as well as better drive protection in transit.
5 Year Limited Warranty
Caviar Green is avilable for 4.5k for 1Tb and focusses on power savings:
Reduced power consumption - WD has reduced power consumption by up to 40 percent compared to standard desktop drives with the combination of WD's IntelliSeek, NoTouch, and IntelliPower technologies.
Helps enable eco-friendly PCs - WD Caviar Green drives yield an average drive power savings of 4-5 watts over standard desktop drives making it possible for our energy-conscious customers to build systems with higher capacities and the right balance of system performance, ensured reliability, and energy conservation.
Cool and quiet - WD GreenPower Technology yields lower operating temperatures for increased reliability and low acoustics for ultra-quiet PCs and external drives.
