I love using my Hasselblad for street work. I find people either don't notice you when you're looking down the WLF, or they respond positively. I also like a challenge, it makes me more thoughtful about what and how I shoot. I'd still like a nice rangefinder with a fast lens though, for low light work.
Congrats AMSP. You and Dan (PKM-25) have piqued my curiosity: On my next "street outing" I will forgo the Leica(s) and bring out the one of Blads with an 80mm (loaded, of course, with either Tri-x or HP-5) and give it a go.