I think building a custom PC is certainly a worthwhile endeavor, if you're a hard-core gamer. For trading I just don't see the need for it. Unless you're going to be doing something really computer intensive, it doesn't make much sense to me. Even so, the PCs you can buy now are plenty powerful and as observed, you can always have a Dell built to your exact specs with extra ram, more powerful processors, higher-output PSUs, dual graphic cards, etc. I think having one pre-built the way you want with XP Pro is the most hassle-free way to go to get a solid dependable trading PC.
I guess if you have a lot of time on your hands and really want to build your own, then I reckon it has its place and has certain advantages. But remember, time is money and in that regard its going to be very expensive to build.
I guess if you have a lot of time on your hands and really want to build your own, then I reckon it has its place and has certain advantages. But remember, time is money and in that regard its going to be very expensive to build.