D.Gray-man is pretty neat, gotta say.

Black Cat is one I'm just starting to get into myself; nifty action.

But here's one that I ABSOLUTELY love (and it happens to be in Piro's list as well): Hajime no Ippo. It is the only anime aside from Cowboy Bebop (that I didn't already read the manga for, i.e. Hellsing, Black Cat, etc.) that hooked me from the very first episode. As soon as the episode ended, I immediately felt the need to watch the next 20someodd episodes all in one sitting. So I did. And then I watched through 40. And then I finished it up the day after.

It's an anime about boxing. I never thought I'd get into a sports anime, but the storytelling is so damn good and the fight scenes are just phenomenal. The artists really captured the true feel of boxing.



edit: And definitely watch FLCL at least once.