800x600? Millions? hehe, hadn't seen traffic reports on websites.
Anyhow ... I have a Flat Panel at home that does 1280x1064. I can't recall if it goes up to 1600, I think I might have done it, but shrank it cause it was too small.
On my laptops, I always use 1024x768. Cause at 1280, you start getting scrolling screens.