Those are great suggestions , Consortium.
I do usually go for Two Steps from Hell when I need a sense of epic-ness.
However , I'm not sure if its just me , but most of the music that falls under this category would serve better as backgrounds for an RPG.
The thing I found so thrilling about ' Strength of a Thousand Men ' , was that sense of perseverance. And its rare for me to find that sense in other music pieces.
I mean take ' The Poet & The Pendulum ' By Nightwish.
The whole song can be a sound track for a mini movie. Yet it doesn't contain that thrilling rush ...
Music is still an enigma to me.
Still , thanks for the suggestions. Return of the King does sound interesting.