Ok here is the deal. I would like a 24" monitor at no more then $350 dollars. I browse the web mostly and game (FPS, supcom, TF2) I currently own a HP w2207h and don't have any real gripes about it although I'm told not having DVI is making it laggy which I don't notice.
Wouldn't the Asus...
Invest in better a/c. Window a/c units are pretty cheap. If you haven't noticed with the increase of larger power supplies but power consumption is not going down and with power comes heat. I know its not the answer you wanted but honestly what you have now is the way to go.