Check out these series of lectures by Joseph Pearce on Tolkien and LOTR?
They are really excellent with tons of information on Tolkien and his viewing of his work as a fundamentally Catholic work and the deep symbolism throughout.
http://www.sbts.edu/MP3/gheens/Lecture%201_Pearce.mp3
http://www.sbts.edu/MP3/gheens/Lecture%202_Pearce.mp3
http://www.sbts.edu/MP3/gheens/Lecture%203.1_Forum.mp3
http://www.sbts.edu/MP3/gheens/Lecture%203.2_Forum.mp3
These Pearce lectures were given at a Baptist Seminary on Tolkien and his Catholicism.
Thanks for the links; I’ll watch them later.