longarm,
If you are short on space you want an LCD monitor. If you have the room it would be worth saving money and going with a CRT. If you are looking to play games, you would get a better picture with a DVI Input over the standard 15 Pin D-Sub. Also with LCD Monitors the response time is what matters, you want an LCD with a 16ms response time if you can get it.
Take Care,
Richard