FWIW, I just bought an Intel NAS Server with capacity for 4 drives, 1 TB or 1.5 TB, Celeron processor, 512meg of ram.
With 2, 1TB, Hitachi disk drives it was $265 after rebate at newegg.com Supposed to be a pretty decent box for NAS and other use. Can't find it right now.
Just bought a gigabit router to go with it too.
Thee is also another SANS box for $205 with a WD Caviar Black 1TB.http://www.newegg.com/Product/ComboDealDet...st=Combo.241314