I'm using a My Book(TM) World Edition(TM) II - 1TB from Western Digital URL: http://www.wdc.com/en/products/Products.asp?DriveID=340 It was only $ 400 at Best Buy. Works fine, a little nosy and a little slow on it's 10/100/1000 interface. WD now has 2TB of NAS available. Later, Bruce ;-)