I've been reading Jack Whyte's Camulod series, and it's rocking my world. I usually hate historical fiction and hate boys' tales even more, but this one is really good. It starts with the beginning of the fall of Rome, with Arthur's grandfather as the protagonist, and it's really engaging. And even more so, despite being a dude story, women aren't either irrelevant or male fantasies - they're written as very real characters in their own right, who you get a sense have their own stories to tell, and all somehow without losing focus on who the main characters really are. Pick them up if you get a chance; you won't be sorry.