Wallpapers
Most of these are aimed at 1920×1200.
Wikipedia Featured Desktop Backgrounds
Deviantart - Wallpaper @ 1920×1200
I won’t bother replicating all of the links from: Tenser, said the Tensor - 1920×1200 Wallpapers (a collection of good wallpaper links)
Very cool set of artwork from games/movies: Goodbrush
