A Saga battleboard and army list for the forces of Isengard from the Lord of the Rings.
Rules: Fantasy
Two Page Lego Minifigs Rules Set
Consortium Games offers Minifigz, a two page rules set for battles with Lego minifigs, and similar mini people. I’m going to have to give this a try.
Update: The original link is dead. You can still find Minifigz on the Wayback Machine.
Dungeon Saga Free Rules
Mantic offers free rules for their Dungeon Saga game.