Jeff - I'd keep the GH2. With good glass and moving the auto white balance away from evil Panasonic green towards magenta, it's a great still camera. It's no full frame, but I don't have to do any work to get good stills anymore. Set it to AWB, autofocus and pull the trigger.
Here is an
example. Here is
another.
I do like the full frame look, but not enough to spend full frame money :-)
Bill