I have never built a pc before and i was looking for all the help i can get. I don't have a very big budget. I have a pc thats not very good at all for gaming (1.3 ghz 128mb ram 40 gig hard drive and Nvidia TNT 64). I was looking for a system that can play Half-life 2 and new games coming out. Please help (anything will help ex: guides, examples of systems, reliable places to buy parts, and any thing else that will help). Please help thanks .