There is really no way to narrow down a list of all the great sites that have some fantastic Sci Fi Wallpaper but I have created a short list of what I consider some of the sites that stand out among the rest. They are in no real order because it is hard to choose which among them was the best.
If you know any sites I may have overlooked please feel free to add a comment and let us know. The more the merrier .
Top 10 sites For sci fi/fantasy wallpaper.
1. Desktop Starship
3. Theme XP
6. SCI FI Wallpaper (WoWlpapers)
7. Blirk.net
8. Skin Base
10. Theme Shack
