1024x768 I belong to a couple of web design groups..they recommend 800x600 for web pages, etc...so you might want to check into that some more. Also, 640x480 is still pretty normal..its only been recently that 17inch monitors are common, which 800x600 is the recommended resolution... 1024x768 on 19inch etc etc

Humankind has not woven the web of life. We are but one thread within it.
Whatever we do to the web, we do to ourselves. All things are bound together.
All things connect......Chief Seattle, 1854