If you're serious about the functionality of the speakers aiding your gaming (ie location of other players, etc), I would most highly recommend a good pair of headphones. I sometimes play with IEM's at night and the ability to locate other players by their footsteps often leaves other players thinking I'm cheating- you can figure out exactly where they're coming from quite easily. If, on the other hand, you want the cinematic presentation of a 5.1 setup, thats something entirely different obviously.