Gamers want the best image quality, but also the most space to play in. A bigger monitor makes for a bigger playground, so game fans should look for the biggest monitor that their budget can bear, and one without high-end features such as calibration. For the best image quality, use a DVI or DisplayPort input, and spend some time tweaking the game display features to find the best balance of eye candy and smooth performance.
An increasing number of games are also now offering support for playing with multiple monitors, which creates a more immersive gaming experience. However, you do need a fast graphics card to support this, as it can double or triple the amount of work that the graphics card has to do. You also need to consider the bezel of the monitor: a thick or large bezel can be very distracting when you put two or three monitors side by side. For more information, see our multi-monitor buying guide.