Now why did I read this thread? It makes me want to start looking for parts to build a new desktop, or start looking for a new laptop. I'm on the road a lot so it would make sense to purchase a laptop that can play games, since my desktop can play the ones I have as it is. Though I also have a PSP that I play on the road as well as an Xbox 360 when I'm home. Oh the humanity!
My 4 year old gaming system died a couple months back. I do miss it but not sure its worth the investment to build another one with the kind of games coming out these days. Just get an Xbox 360 as there is nothing coming out for PC anymore thats not on Xbox.