I was watching disk 1 of the extended box set again the other night and came to realize that Strider is the heir of his fathers throne refered to as "Isildurs Bane". The lightbulb went off. I knew I heard that before but where.....several comps.

From the bands bio:
Where does the name "Isildurs Bane" stem from?
Isildurs Bane is, both in the original English version and in the translated Swedish one, one of the several names of "The Ring" in J.R.R. Tolkien's trilogy "The Lord of the Rings". When the band was formed in 1976, there was a huge interest in the fantasy style in books, art and music, making it quite natural to choose a name associated with the kind of music we made.

So, what other groups, songs and references to TLOTR can you list besides the obvious ones by Led Zep like Misty Mtn. Hop, Stairway, Ramble on, and a few others.