Hitachi rolled out a new Deskstar 7K3000 model 7,200RPM, 3.5-inch 3TB hard drive. 7K3000 is also the first Hitachi hard drive with a 6Gb/s SATA interface, which along with its 64MB cache buffer delivers a big boost to performance over the previous generation product.
Deskstar 7K3000 is designed to allow manufacturers to leverage the benefits of the latest components and operating systems to deliver high-performance, high-capacity, power-efficient systems. Manufacturers planning to use the highest capacity 3TB drive in systems should consult the Hitachi High Capacity Technology Brief.
It'll cost somewhere in the neighborhood of £200, or $320.
More Info: Hitachi