i disagree with the poster who says the cheaper dell's aren't good for trading. i just bought 2 dell e505's with intc duo chips and 2 gig of ram and there awesome for $500 each. i run 12 dynamic screeens and with 8 different brokers all witht here own dynamic level 2's throwing in 100's of orders a day with never a hickup. every dell i've ever had i've enver had a hickup. go ahead and spend 5k on a system