I would pretty much LOVE anything Tezuka by the film makers of Metropolis. That is such an amazing movie! They took one of his early works (which I read, and is pretty lame compared to his later works) and developed it so nicely. And it has Rock, who like Gopher says in the old Winnie the Pooh, "I wasn't in the book". I'm glad they put him in there.
Another attempt of Black Jack would humor me. We have the really dark OVA's and the light and fluffy 2004 series, how about a series in between?
Probably before I can pick others, I would like to see the ones ALREADY made, like Dororo and Princess Knight.