Some of the best (in my opinion)...
For series:
Elfen Lied
Kimi Ga Nozumu Eien
Samurai Champloo
Trigun
Gunslinger Girl
Noir
Death Note
Cowboy Bebop
Gungrave
Aaand as for movies and the like:
Mononoke Hime
Perfect Blue
The Girl Who Ran Through Time
Some of the best (in my opinion)...
For series:
Elfen Lied
Kimi Ga Nozumu Eien
Samurai Champloo
Trigun
Gunslinger Girl
Noir
Death Note
Cowboy Bebop
Gungrave
Aaand as for movies and the like:
Mononoke Hime
Perfect Blue
The Girl Who Ran Through Time