Canon 40D to Panasonic DMC-GX1 - any regrets?

You might consider the Olymous OM-D instead if you found the lack of DR in M43 to be a problem. It seems to have upped that capability a bit.

I can agree that DR is somewhat limited in the rest of the m43 cameras. But I think it's a safrice I'm willing to do since there's much less weight to drag around with a M43-system. And that means that the camera won't be left at home where it won't do much good...

The G3 is struggling a bit with the sky in this sample...

Edit: I forget to mention that I have a Nikon D90 too with a lot of lenses and I don't think I've used it at all the last year.