http://www.Pricewatch.com is a good place for finding low prices on individual components. Could you be more specific on 'bare bones'? To me, that means: Motherboard, CPU, Case, RAM, Fans (various types). I've done some recent pricewatch checks and I've figured I can get a very good barebones of the type I've described for under 300, a little more with shipping.
P.S. Building it myself, that is. AMD 1600, KT266A motherboard or some variant, 256mb ram.
