Manga Recs?

Since I am just about finished reading Mushishi and Saiyuki is sadly on indefinite hiatus, I find myself with a bit of a gap in my reading. Sure, I have plenty of Western comics I haven't read yet, but manga hits a different set of buttons. I thought the internet was bound to have ideas for what I should read next.

Things I already have access to: Trigun, Yami no Matsui, Fruits Basket, Cantarella, Nightmare Inspector, Death Note, Nausicaa, Pet Shop of Horrors, Wild Adapter and Eagle.

I am open to pretty much anything, although pure romance is not my genre in any medium. The characters have to be hunting serial killers or saving the world or committing daring robberies between significant glances.

Dude!

There's going to be crossover DS game where Professor Layton will meet Phoenix Wright.

... I cannot think of anything to say about that beyond 'WTF?' and 'when can I buy it?'