I prefer a good optical mouse ,I will never go back to a ball type mouse again even for gaming,the Logitech Dual Optical is a good gaming mouse,I think it`s really a personal choice here since it depends if you prefer optical or a ball type mouse, then the mouse itself has to feel right in your hands ie not too big or too small.
My old Logitech Optical Mouseman (blue one) still works well for me in gaming( the Logitech dual optical mouse is better) and I`ve played them all with it,Q3,UT,CS,TFC,DMC,DoD etc.