Alienware X51. The Alienware X51 fits everything a serious gamer needs into a compact chassis. The desktop has a full-size hard drive, desktop-class quad-core processor, and, best of all, a 150-watt discrete graphics card with multimonitor support. PC gaming is arguably "better" than console gaming because systems like the X51 can easily drive more than one monitor, and PC games can be modified by the gaming public to enhance or even radically change game play elements. Want to mash up the Star Trek and Star Wars universes on a console?...