If you have room in your desktop for another hard drive, it is a lot cheaper to add a 1TB to it. It is almost 1/2 the cost. If you don't have room or want a portable hard drive then here are some more 1TB through NEWEGG that are from Western Digital.

http://www.newegg.com/Product/Produc...82E16822136061
http://www.newegg.com/Product/Produc...2E16822136061R
http://www.newegg.com/Product/Produc...82E16822136172
http://www.newegg.com/Product/Produc...82E16822136186
http://www.newegg.com/Product/Produc...2E16822136186R