Electronista - I am not a fan of the mouse that came with my iMac, so I’ve tried a variety of mice with varying success. I have small hands, size 7 to be exact, so most mice feel too big for me. My favorite mouse is the simple Mini Pro from Contour Design, but I managed to break two of them over the past ten years. They don’t like to be tossed and stepped on, which happens when I travel. In my search for better ergonomics, I read about the Evoluent VerticalMouse.