The sleek and stylish Dell Adamo ($2,000 and up) takes on the MacBook Air encased in a .65-inch thin body crafted from a single piece of aluminum. Weighing in at four pounds, this super-thin notebook comes with a 13.4-inch glass display, backlit keyboard, 128GB solid-state drive, 2GB of DDR3 RAM, WiFi and Bluetooth. The Adamo is also integrated with Intel X4500 graphics with a 1.2GHz Intel Core 2 Duo U9300 processor and runs on Windows Vista Home Premium Edition.