I highly recommend going to the DELL outlet store and buying a high performance reconditioned PC from their site. They are Cheap, warrantied, and they perform at the top of their class.
http://outlet.us.dell.com/Dispatcher?target=InventoryPage&action=page&pageNo=7&lob=DIM&sessionID=1Np7dGQD!-2069891079!-701670513!1057843515291&tgtSeg=I

I've purchased my last 5 PC for myself, family, and friends there and each one was a price/performance winner.

just a thought....