If you have read Howard's original Conan stuff, there is a recent republication of all the old stories and at least one novel. It is pretty good and has a some background on him as well as some drafts of the stories.
I read The Hour of the Dragon when I was young, and loved it. Like a true geek, I can still, to this day, recite the opening poem by heart:
The lion-banner sways, and falls in the horror-haunted gloom
A scarlet dragon rustles by, born on winds of doom
in heaps, the shining horsemen lie, where the thrusting lances break
and deep in the haunted mountains, the lost black Gods awake
Dead hands grope in the shadows
The stars turn pale with fright
for this is the Dragon's hour
the triumph of Fear and Night
I used to open some D&D sessions with that heh, ok too much info.
Anyway, I'm surprised no one has mentioned the Xanth series by Piers Anthony. The opener A Spell for Chameleon introduces you to one of the coolest characters I've ever seen, Chameleon. She goes through a transformation throughout the year...she is incredibly hot, but stupid...then gets uglier and smarter, then back to hot and stupid, in an endless cycle. It might not be as epic as LOTR, but it's a hoot.
Also look into his "Fates" series starting with On A Pale Horse.