Ok, for some reason, I don't see the double memory for free but did see the quadruple HD upgrade for free. Mine came out to $239.
PowerEdge SC420:
Celeron 2.53Ghz, 533Mhz FSB
No OS
256MB DDR, 533Mhz single ranked
Standard Keyboard, Mouse
FREE QUADRUPLE UPGRADE to 160GB SATA Hard Drive...