Have you ever dreamed of finally owning a PC that could play the uber-popular Crysis? Of course you have. Luckily, Maximum PC threw together a guide on how to build a computer using quality parts for about $500. The end result is a machine that can handle Crysis at 40 frames-per-second, ensuring that nearly any game can be installed and enjoyed on it. The caveat? They didn’t include an OS but everyone knows Windows is free.