Resolution. High resolution and multiple color capability are essential for sharp images. In general, a 1,024 x 768 resolution in 256 colors is considered the minimum for taking full advantage of multimedia applications, including images and animation from CD-ROMs. High-res quality can also help prevent user fatigue, if you work on your computer for hours on end.

Dot pitch. A lower-value dot pitch means a clearer image. In general, a dot pitch of 0.26 to 0.28 is considered the minimum level needed to display high-quality multimedia images. To keep prices down, some computer makers include a cheap monitor with a dot pitch of .39 mm or more. Avoid these systems or ask if you can pay a few dollars more for a better display.

Refresh rate. The higher the refresh rate, the less the screen will flicker. Aim for a monitor with a refresh rate of at least 72 to 75 Hz (frames per second).

Size. Larger monitors increase the amount of information you can view at one time. This is visually appealing, but the monitor still needs to support a high enough resolution and small enough dot pitch to retain sharpness and clarity in the display area. Larger monitors tend to be much more expensive than their smaller counterparts. For instance, 17-inch monitors are priced about 50 percent higher than 15-inchers with the same resolution and capabilities. But a 17-inch screen can make a remarkable difference in your computing experience. If you have to choose one place to spend a little more money, this is it.

Multimedia capabilities. Some monitors packaged with systems from major manufacturers come equipped with speakers, microphones, headphone jacks, usb ports and audio inputs. If you want a different monitor, you may have to buy some of these items separately.