Originally Posted by -Near-
- Death Note
- Black Lagoon
- Gun Grave
- Blue Drop
- You're Under Arrest: Full Throttle
- Cowboy Bebop
- Darker Than Black
- Elfen Lied
The series that are in italics are ones that I both strongly recommend, and should fit into your enjoyment criteria.
Add Hellsing and Excel Saga to that.
Hellsing is just hella good and Excel Saga is wacky goodness. Too bad Hellsing was only 13 episodes but $50 for the complete collection was a steal.