This is a highly debatable subject. "What resolution should I design for?" The norm these days seems to be 800X600 although there are still a small number of people limping along in 640X480. Look at your site in different resolutions to get an idea of what I'm talking about. If you don't mind letting the small majority scroll right and left and it still looks acceptable to those surfing in mega resolutions of 1024 and higher.
We are upholding high standards which include user friendly tactics.