Cool wallpapers? ...Here is a complete list of the best wallpaper sites!

http://www.deviantart.com/
http://www.digitalblasphemy.com/
http://www.interfacelift.com
http://www.endeffect.com/
http://www.breedart.org/
http://www.looroll.com/
http://themexp.org/
http://www.wincustomize.org/
http://customize.org/
http://www.wallpapergarage.com/
http://www.imageflash.com.ar/
http://www.desktopnexus.com/