Seagate has a proven track record of consistently delivering reliable products in volume, and the new Barracuda 7200.11 family is no exception. Designed with up to four platters and the only second-generation perpendicular recording technology in the industry, the Barracuda 7200.11 drive offers the ideal balance of world-class technology and value, providing customers with an optimal overall solution.
Product Description Seagate Barracuda 7200.11 - hard drive - 500 GB - SATA-300
Type Hard drive - internal
Form Factor 3.5" x 1/3H
Dimensions (WxDxH) 10.2 cm x 14.7 cm x 2.6 cm
Weight 0.53 kg
Capacity 500 GB
Interface Type Serial ATA-300
Data Transfer Rate 300 MBps
Spindle Speed 7200 rpm
Buffer Size 32 MB
Manufacturer Warranty 5 years warranty
This is really fast with a large Cache and cheap. You can also save an extra £1.76 by buying some smaller parts like Fans (for Example http://www.ebuyer.com/search?sort=pricelow&store=2&cat=125&limit=10&page=1
to get it over £50 as you then get free shipping on super savign shipping.