As to displays - the average cheap older panel is 1280x1024, most users are going to have two.

MANY of us have higher end systems and I can personally say that dual 22's is perfectly playable and I have no issues with my side-vision having them set @ 1680x1050.

I like the testing method, I'll have to give this a shot on my system tonight as I've got three AMD chips available for the moment... AMD Phenom 9600 (2.3ghz), the 9950 (2.6ghz) and the new phenom II @ 3.0GHZ should be arriving this afternoon!