Pick up any local classified, and you will find that there are literally hundreds of ads claiming to give you the best deals on surplus computer parts. When buying surplus computer parts, always be careful and buy it from a reputed dealer. This way, the chances of a part going bad or not working at all is minimized.
When buying any used part, look out for minor damages that are not visible at first. For instance, if you are in the market for a used laptop screen, look in the corners for any chipped plastic around the LCD screen. Such attention to detail is necessary to avoid future hassles. What this means is that virtually any component that you want to buy should be checked thoroughly. Wires are a good example. An overheated wire, for example, could be potentially dangerous to use. Same is the case with a melted cord or power box.
Any accessory that you need to purchase should be cross checked before you make your ultimate purchase decision. For instance, batteries may have been working for a long period of time, and it is always better to check the batteries for leaks or other kinds of damage. Hard disk drives available in the surplus markets are important accessories that are prone to disaster if not checked properly, as are the ports and other connecting devices involved in a computer. One can get extensive information on both buying and choosing surplus computer parts through a simple search on the Internet.