Internet Cafe system

I was looking at something like this myself. I think it's best to keep both the power consumption and the price nice and low. Despite the ultra low power consumption and low price though, this should play most games on ultra high settings. (At 1366x768 at least)

Intel Pentium G620
G.SKILL NS 4GB (2 x 2GB)
ASRock H61M-VS
Sapphire HD 7750 1GB
Seagate Barracuda 500GB
Fractal Design Core 1000
SeaSonic SS-300ES Bronze 300W
Samsung DVD Burner

Total - $439.92

The max power draw should be between 100-150W and it should still be great for gaming. That Pentium in particular gives insane gaming performance for the price compared to AMD's offerings. The price/performance on the graphics card is OK but the main reason for it is the ultra low power consumption.