I think her hair style was pretty awesome and did a good job of making her look the complete opposite of her sister. Bellatrix was (as stated) crazy, with wild hair and dark skin (described in the book). Narsissa (did I spell that wrong???) on the other hand, was "so pale that she seemed to shine in the darkness; the long blonde hair streaming down her back..." (Half Blood Prince, chapter two: spinners end) and was calm and controlled.
Aaaand continuing from another post, she lied straight up to Voldemort's face about Harry's death. She must have been an amazing practitioner of Occulumency.
Yes.
I like this title.