Angelic Layer
Big O
Bubble Gum Crisis (Original)
Full Metal Panic
Ghost In The Shell (both movies and both TV Seasons)
Gundam (Wing, X, G, Turn-A, Seed/Destiny, and MS08th Team)
One Piece
Rurouni Kenshin
Transformers (c'mon now!)
Vision of Escaflowne
Currently watching/enjoying Claymore, Gigantic Formula, History's Strongest Disciple Kenichi, Magical Girl Lyrical Nanoha Striker S, and One Piece
I'm gonna have to recommend Claymore, if you guys liked Hellsing, it has a somewhat similar feel to it. :)
http://en.wikipedia.org/wiki/Claymore_%28Manga%29
Nobody is crazy enough to accuse me of being sane.