a receptive mind, a mind which has seen what can be done and then seeks it's own voice. To that end I can not recommend too highly the following DVD's. They are famous photographers talking about their contact sheets and why they take on image over another. It's interesting to see Cartier-Bresson's contact sheets. He shoots a lot of film for that "decisive moment." Helmut Newton looking 4000 nudes sees two images never printed before which he picks for a Diptych to show at the Biennale.
Contact. 1 Contacts. 2
Contacts. 3 (still waiting on)
A sensitized mind is the most import equipment a photographer can have.