Berserk, Gungrave, Ghost In The Shell, Rurouni Kenshin till the Shishio arc, Ergo Proxy, Gankutsuou, Planetes, His And Her Circumstances, Nana, Wolf's Rain, Full Metal Alchemist, One Piece, Monster, Hunter X Hunter, Aishiteruze Baby ... to list a few. There're a lot others I'm forgetting :p