A good SATA 7,200rpm 160gb WD would be the nest in line unless you decide to go with an ide model. The Raptor of course is a 10,000 model. There's a weekend sale going on at newegg on the WD2500KS seen at
http://www.newegg.com/Product/Produc...82E16822144701 That would give you even more drive space.