I am looking to dump my D7000 and am debating the GH3 and EM-5. One thing I can't seem to find, how is the focus tracking on the GH3? Better than the EM-5? I haven't decided if the video features are a selling point. Thinking of an EM-5, then adding a hacked GH2 if I need better video. But, if the tracking is substantially better, it could be a reason to spend the extra money. If not, the size, price, IBIS of the EM-5 wins.