Dawnforge was a setting produced by Fantasy Flight Games, and had been one of the finalists for Wizards of the Coast’s new setting contest (Eberron won).
Dawnforge has a number of tropes that fit Echelon d20 rather well and has been one of my regular references for that project. Among them, heroes are larger than life, race matters throughout a hero’s career (rather than just provide a starting point), and high-level characters deserve to be awesome regardless of class.