I know it's not Anime, but I figure this community would appreciate it...

Batman: Under the Red Hood has recently become viewable on Netflix Intsant Queue. I just watched it and it's quite awesome. The only thing going against it is a changing voice cast compared to recent animated Batman outings. Other than that, this move really kicks ass.

I'd go into more detail but I don't want to spoil anything without warning. It's only 75 minutes long and is definitely worth giving a shot, in my opinion.