Disliked{quote} J.Clinton is 100% right in that you don't need a super computer to run most trading apps. I do a lot more with mine at the same time so it helps me. But one more note. Your internet speed is actually a bigger factor in trading. If you have a slow internet connection, the fastest computer on Earth won't help. Just thought I'd mention that before you spend any money. Good luck!Ignored
Metatrader 4 was released back in 2005 when consumer dual cores were only just hitting the market so it will run on any new machine easily.
Metatrader 5 as far as I am aware doesn't use a great deal more in terms of resources than Metatrader 4.