i used
digitalstormonline.com
and really i think I only lost 200 dollars, but there's no tax or shipping so I'm pretty sure it evened out. plus I love the 2 year full warranty and the fact that they assemble it and burn it in for 3 days. every driver will be installed, windows will be installed all of it's done. they have asus boards WD, raptor HDs corsair, supertalent memory, all brand name stuff at good prices.