Very useful thread.
After mainly shooting medium format, (Mamiya 645afd) and Kodak 645 digital back, I am adding a Canon eos 5d and EF 24-105 mm kit to my armoury. Taking delivery tomorrow. Price is now a remarkable £2,089 for the camera and lens.
I am considering the 70-300mm DO due to its small size as I think this will work well for candid street shots.
85mm portrait lens looks a must have.
Will keep reading and let you know how the kit expands!