I have a regular logitech cordless mouse for notebooks, and imo it's the best mobile mouse out there. Unlike the Ben Q, Logitech v500, and MS notebook mouse, it is a decent size. I hate tiny notebook mice. This is a little smaller than a normal mouse, but not so much so that you get annoyed using it. You really could get away with this being your only mouse. Plus it has great responsiveness, takes a beating, has great battery life, and moves very smoothly.
-Good Luck