I honestly don't watch too many animes but one series that I absolutely fell in love with was called Noir. Any others familiar with this one? I really enjoyed watching the first episode that a friend introduced me to that I bought the whole series on DVD the very next week. 
https://www.youtube.com/v/jcx6upBbaS0
https://www.youtube.com/v/jcx6upBbaS0
