I had a turn on and off from these cameras for a while, never really THAT impressed with their IQ, noise, lens choice etc. I did start with a G1 and moved to a GH1. But it seems the lens choices have really opened up, the OM-D is a fantastic camera & the slew of cheap and new lenses from all parties has really opened the system up.
I would say unless you want to drop a lot on a SLR system, the OM-D and a few cheap primes or all around zoom is the go. Currently I use Sigma 19mm, Panasonic 14mm & recently acquired 12-35mm, Oly 45mm. The fact I can tote around all these lenses and it still weighs less than a D800 + 35mm f1.4 is a huge plus. Anyways enough of my ramblings, here's some recent pics from the new 12-35mm. Jealous of the Manila photos posted earlier, will definitely have to go out soon and fire up silver efex again!
One last question though, any tips for focusing when doing street? I've only taken the camera out twice now but I did find myself missing critical focus, maybe because I'm rushing things. Any tips for best focus methods would be appreciated.