I built this mainly to play League of Legends, and as a replacement for my 5 year-old system running a Core2Duo and an 8800GT. The point of this build was to beat my roommate, who build his computer last summer. The race is on.
The DVD burner and 750GB drive came out of my old machine, hence the $0.
I bought the keyboard about two weeks ago, but calculated it into this build, because it came out of the budget for this.
I have a Asus VG23AH 3D monitor that I will be using for this rig, and I'll eventually buy a second, matching display, for dual monitored aweseomness.