Here are some wonderful pictures I gathered off of the net. You can find most of these sites here.

The Swan-ship of Lorien Artist: Maura Boldi Resolution: 751x986 Size: 347K

The Lord of the Nazgul Artist: Fletcher Resolution: 681x949 Size: 226K

The Black Rider Artist: Stephen Hickman Resolution: 728x661 Size: 171K

Gandalf and Pippin Artist: Luca Michelucci Resolution: 850x1113 Size: 296K

The Siege of Gondor Artist: Stephen Hickman Resolution: 1725x840 Size: 601K

More pictures are coming soon, ones that are less large.