Thanks for all the help 
That is good to know. Thanks Rapacious.
I'm living in the Lake District and I can't think of any retailers that stock good mice. I will have to buy before I try. My current mouse is tiny, laptop mouse I think. When using a mouse I like to keep my wrist planted in one position and move the mouse with my fingers. So I guess I need a small'ish mouse, just bigger than my currentone.
The G5 looks good, as does the Death Adder. hmmm . . .

If you are an FPS player, do NOT go laser - Optical is the way forward.
That is good to know. Thanks Rapacious.
I'm living in the Lake District and I can't think of any retailers that stock good mice. I will have to buy before I try. My current mouse is tiny, laptop mouse I think. When using a mouse I like to keep my wrist planted in one position and move the mouse with my fingers. So I guess I need a small'ish mouse, just bigger than my currentone.
The G5 looks good, as does the Death Adder. hmmm . . .