This is the Alienware X51. It’s a small gaming PC, designed to be the size of an Xbox, roughly. With the usual Alieware lighting scheme, slot loading DVD drive and sleek form, it costs $699, $849 and $949 – with a choice of Core i3, i5 or i7 processors, respectively. Each version of the X51 has a terabyte (1,000 GB) hard drive, no SSD options and 4GB or 8GB or RAM. It also comes with an Alienware keyboard, along with either NVIDIA’s GeForce GT 545 graphics in the cheaper model, or GTX 555 in the better models. As for ports, there’s an HDMI 1.4, on-board WiFi, USB 3.0 and digital 7.1 surround sound. Best of all, in true Alienware fashion, all parts can be upgraded, and it looks fantastic.