HP’s HDX 18t Premium Series Notebook is a mammoth 18″ desktop replacement machine with a wealth of multimedia-targeted features and capabilities on board. With a stylish, glossy exterior, large keyboard area with touch-sensitive illuminated buttons, a TV tuner and remote control, this machine screams Media Center PC. It has a fair bit of gaming under the hood as well, with NVIDIA’s GeForce 9600M GT powering its graphics subsystem. It’s a well-rounded machine at a fair price ($1599 as tested), that will serve