Perhaps combine Knight with Warmage and make for some kind of Mageknight? Alternately, perhaps a Knight/Cleric and make a How-it-should-be True Paladin prestige class. Druid/Knight who uses their animal companion as a mount and they are Knights of the Old Code, following the Old Ways of the world (very Arthurian). Consider using someone's homebrew, and make an ozodrin/knight who arms himself in armor of flesh with weapons of bone or use my Generator and combine it with Knight to make a Techno Knight.
Just some ideas.
-X