I do not mean to piss on anyone's parade here, but that is more or less (more or less) what every pc (l)user will have to play counterstrike (or whatever is in atm).
What you want to be geeky, even in the pc-world, is an old machine, like a p100 or so and then customize it like crazy, clock everything, buy something cryo-like and mod the mb. After all, if you fail replacement components are practically free. Now that's geeky and cool in my opinion :-)
People building their pc's into portable beer cases are geeky too.
Sincerely,
-Kenneth Straarup.