I dont want to spend a bunch of extra money on things that I dont need. However, I am willing to spend enough to eliminate my computer from bogging down with the ability to use two moniters while multi tabling, running poker program, the internet, and possibly music or whatever.

I am totally unfamiliar with prices, so is there a ballpark for what I would like to do?

Also, is it better to run two computers with seperate processors and some applications on one and some on the other or will two HD's accomplish the same thing?