To find the best deal on a desktop PC, you need to first know what you want and what you need. As you're almost always going to want more than you need, make a list. Decide what's necessary, how much you can afford, and where you can sacrifice a little.
All the numbers and specifications and technobabble can be overwhelming, so here are a few key things to focus on:
Memory (RAM) - In general, this is the number one factor slowing down PC computers. The more RAM you have, the more quickly your PC can access and retrieve data. This means faster boot and load times and less hangups when working with digital media like photos and music. Do NOT settle for less than 1GB!
Hard Drive capacity (Gigabytes) - Most desktops come standard with more space than you need, but be wary. That huge MP3 library takes up a lot of space. Most "economy" line desktops seem to come standard with 80GB hard drives, which is rarely enough for a family or digital media fanatic. Unless you never install any games and don't use your PC for music or video, look for something in the 250 Gigabyte range to ensure that you have enough storage.
Video Card - This is the most debated, most quickly outdated, and often the most expensive part of your PC. If you want to watch TV through your PC, make sure you get a card with a TV tuner (a cable jack attached to the card). If you're buying a PC to play games, chances are you'll be spending a little bit more or buying an aftermarket video card. When looking at the video card, note the refresh rate (Hz) and resolution (i.e. 1024 x 760). Higher numbers are generally better.
Processor Speed (MHz) - Not as important as one might think. The difference between a 2.13 GHz chip and a 2.6 GHz chip is nearly imperceptible to the average user. Also, the difference between Intel and AMD is minimal, unless you are a hardcore user.
Peripherals - Cheap and easy to upgrade, don't let peripherals cloud your vision about the important stuff. The only thing you need to worry about is your monitor. Do you want widescreen or 16:9? How big do you want to go? Often this can drastically effect the price of your new desktop PC. Just make sure there's a monitor included!
Continue reading on the next page for a few ideas on where to get the best deals!