So, here's some background. I got into m4/3 last year, when I decided to downsize from my FF Nikon D700 and other gear. I used to do occasional wedding and family gigs, but did not have time for it for a while due to many things. And when traveling, the heavy gear killed my back So besides a basic photo course I teach once or twice a year, my photography has mostly been family stuff. When I sold my Nikon gear, I kept my Sigma 2.8 zooms for when my kids got involved in sports. Well, that day has come. As such, I bought a D7100 to use for their sports. But I have been highly disappointed with the AF on it during evening use. (There's even a 70D/d7100 comparison video on youtube that shows the same issue with backlit subjects I was having, and the 70D blows it away in these situations) So, I sent it back. Now I've got to decide what to do: Get a 70D and replace my Sigma lenses with Canon mount versions. Or, get an Em-1 and replace the Sigma glass with Olympus stuff (maybe get the Oly 55-200 SWD until the 40-150 comes out next year). In either case, I'm going to sell my Em-5 and replace with an EPL-5 to have a more compact kit for travel. (And I want something competent with video and with wifi built in, so these are the two best options IMO for me.) And as an FYI, my current m4/3 glass is: Rok Fish, 14 2.5, 45 1.8, 75 1.8, 12-50, 45-175. As I said, my primary use will be for family and personal hobby stuff, but I have had lots of recent requests for family photos and some weddings, and I do have the time to work some of them in my schedule again. So, if you were in my place, what would you do?