While reading kesher's latest entry on his Sandbox Empire blog, he had a player show up with a balrog character. I think this is just awesome, I have always loved the imagery of the fight in Khazad-dum between Gandalf the the mighty creature of "Shadow and Flame". Kehser was nice enough to link to this post on the OD&D forums about the character class, which I took and ported over to Swords & Wizardry. It was hastily built, so if you see any typos, I am not surprised. Now I am thinking of how cool a 1st Age Middle Earth game would be, though it would require some shoe-horning to allow elves and balrogs to adventure together - ok maybe that idea is not so good - but I do want to see one of these in play.
Here is a link to the S&W version of this character class.