I've had this link for a while and didn't think of sharing it. It's art by Brom, from the darksun books. Since the HRPT began, I've been using the one of the Prism Pentad covers at the bottom of the page as my wallpaper (the one with the mul and the warriors marching behind him in the desert).
http://members.cox.net/dragons_sanctum/BromArt.htm
Good stuff.