I'm running X-Trader 6.x on a computer with an Athlon 1800 XP chip and the cpu maxes out when the T-notes start moving around. The ram usage never goes above 200mb and Xtrader is the only thing running on this machine. During nonfarm on Friday my machine pretty much froze until things settled down. For a new machine, do I need dual processors or will a high-powered single chip do the job? If you're running X-Trader, what are your thoughts about this? I'm not running X-Trader Pro, but I want to build/buy a machine with enough hp to use it in the future. I'd like to keep from upgrading again for at least 3 years if at all possible. I'm asking because I don't want to buy a high-powered single cpu machine only to find that it can't keep up with X-Trader/Pro. Also, do I need a speedy hard drive or will a 7200 rpm SATA do the job? Thanks.