Taking gaming as seriously as I do requires a serious monitor. If you have a top of the line PC, and then you have a junk monitor, you might as well be wasting your money. Without delivering the full power of your PC in visuals, you aren't getting what you paid for in your PC. Below I have listed my top 5 choices for PC gaming monitors that are also very affordable.

This monitor delivers everything you need at a very affordable price. It has superior refresh rates, a 20000:1 dynamic contrast ratio, and supports 1680 x 1050 resolution. The new 3d function for Nvidia graphics cards that require the 3d glasses works exceptionally on this monitor.

This monitor from BenQ features a 24-inch screen with a max resolution of 1920 x 1080. It provides a 1,000:1 contrast ration and has a response time of 2ms. Included with it is a 3 port USB hub, a 2 megapixel web cam, and HDMI/DVI-D/Mini D-Sub interface.

Amazon.com Product Description
This display offers solid and reliable performance without breaking your budget and can be used for business, school work, home projects and entertainment.

Another monitor by Acer that delivers high quality video for any circumstance. A great monitor for gaming and anything else you would need to do.