Rec us some anime!

OMG, we've only got one more anime series in our Netflix queue. Please rec us some anime series! Here's some stuff we like and don't like:

Don't like:
Really silly and/or romance obsessed characters/plots (Jubei Chan is about our limit)
Plots that are really surreal or difficult to follow (we're watching Ergo Proxy, but it is a little past our comfort level)
Series that go on for more than ~30 episodes

Like:
Black Jack
Cowboy Bebop
Death Note
Gankutsuou
Genshiken
Ghost in the Shell: SAC
Hellsing
Kaze no Yojimbo
Last Exile
Macross, Macross Plus
Neon Genesis Evangelion
Outlaw Star
Princess 9
Samurai Champloo
Shakugan no Shana