So I have two basic rigs i take candid/street style images with. One is a 1D with 70-200 on it and the other is a 5D with nifty 50. I get much better candid style shots with the zoom but it is a very noticeable camera to be carrying around. The 5D and 50mm are much less obtrusive but you are much more noticeable to your subjects. What are other people using?