Manga I'm Currently Reading

[Magister Magi]

Well, if you haven't read Fate/Stay Night I'd recommend that. It's a really great manga IMHO. If not, there's the Fullmetal Alchemist manga. I think it was actually a lot better than the original anime series was (supported by the fact that the manga got its own anime series, Fullmetal Alchemist: Brotherhood).

Of course, there's always Negima! Magister Negi Magi too.