If you can put together a puzzle, you can build a PC. It's easy.
I will second that! its more nerve wracking than difficult. one thing you could do is watch a few videos on you tube. that will give you an idea on how it goes. its really just a matter of half a hand full of screws, a few push-clicks, and plugging in wires. just go slow, and pay attention to detail. all of that said, for $50.00, the NCIX-US deal is pretty hard to beat. one of the big perks to building your own machine is you do not get a ton of garbage software preinstalled.