Touch-screen Windows 8 notebooks are going mainstream, and Samsung hopes to tap into the trend with its Series 5 UltraTouch NP540U3C. This sleek 13.3-inch Ultrabook features a powerful Core i5 processor and 32GB of ExpressCache paired with a 500GB hard drive for swift performance. And it's all packaged in a brushed aluminum design that weighs less than 4 pounds. Priced at $849, this ultraportable certainly isn't cheap, but it costs only $84 more than a Windows 7 model without touch. Find out how this machine stacks up.