been quite happy with mine, thought a dedicated thread might be useful.
here are a few, not necessarily monochrome limited:
1. I'm using the Luigi half case with grip; also the luigi baseplate. this combo has the distinct advantage of card and battery access with out removing the base or the case. helps considerably holding the camera and helps keep my finger off the rangefinder window
2. also thumbs up grip, suitable mod in the Luigi case for it
3. after taking many shots of the ground and inside of my bag, i removed the soft button, as it was getting bumped when i didn't or forgot to turn off the camera