as the guys above have implied .... it does not matter the camera
but I do encourage you to use shorter focal lengths that takes in more of the environment your subject is in (10-22, 20mm, 35mm and NO MORE than 50mm) IMHO
you should also have a liking for communicating with people ..... that is the one most important piece of equiptment that money cannot buy
erhmmm..... there is going to be temptation of using a long tele zoom to shoot street and people from afar..... that is cowardly and cold IMHO ..... I would avoid that (just my suggestion)