I'm not at all against high-powered character (I mean look at the game I'm running), but whether or not I allow something like that will honestly depend on the characters other people come up with. I want the group to have a decent balance of power and that guy is at the top of the power scale.
Of course it isn't really fair to say "Your character is fine, but only if other people make certain kinds of characters," but really the best advice I can give you is to watch what other people end up posting for characters. If none of them are on par with the king of smack, then I wouldn't use that as your character. Either way, if you do use that kind of build, I'm gonna make you sign in blood that you promise not to break my game. That and maybe I won't allow rings of counterspell with dispel magic in them...