Dell's Vostro range of notebooks is designed specifically for small businesses, offering computing power and features at an affordable price. The smallest of the range is the 13.3in. Vostro 1310 model, which is available from Dell's web site for as little as £249 (ex. VAT) with a one-year warranty. But what specifications will you need for a credible business system, and what do the necessary upgrades do to the price?