Dell has announced an update to its line of business-oriented laptops that will bring new designs and improved performance. The new The systems come housed in thin aluminum shells and will ship in bronze, red or silver colors. Pricing is not half bad, either -- the Dell Vostro 3300 will start at $669, the 3400 and 3500 will start at $649, and the 3700 will start at $679. All models include a year of Dell ProSupport and CompleteCare.