DVDs by Director

[thatpfunk]

Each month I set a goal for hours to play and if I reach it, I reward myself with some money to spend on Amazon.

I am increasing my DVD collection and have been considering purchasing all the works by specific directors.

At the moment I am considering:
-QT (Only one movie away)
-Scorsese (he has a ton, but I think it would be cool to have all his work)
-PTA
-Wes Anderson

Any other suggestions? It is tough because someone like Spielberg has too many movies that I would just not want to own. I know I am probably missing a ton of potential here...