learn how to put together your first gaming computer, learn the benefits of building your own computer over OEM's, learn where to look for your parts, learn what is ok to buy secondhand
So i dumped my old water-cooling setup i got at a garage sale because it wasn't taking my phenom2X4 past 3.6ghz. i got a h60 instead, and my phenom2X2 is now happily unlocked at a quadcore and 4.1ghz