I have a Naga that I use on my desktop when I play. Its decent, but definitely not essential. When I play on my laptop I use a 3 button mouse.
What I would really love to find would be a mouse that has a D-pad for the thumb. Then I could have all the movemnt controlled with my right hand, freeing up my left for hotkeys.
I haven’t found any after doing google searches except for a pretty cheap looking one imported from china by a company called Sandio for $80.
Anyone have any other suggestions?