Hi.
I am a gamer and I have a set of Mirage Nanosats. I have to say that for surround sound gaming, these things are extremely cool. The tweeter design (OmniGlide) creates such an immersive surround experience that its easy to get lost in the game. Sound comes from all directions, has great highs and mid, and with a good subwoofer (The Mirage Nanosub is good but kind of boomy, not quite natural and tight enough for me, but I actually like several other subs better) you good a full range.
If you are a PC gamer and you have a soundcard with optical out, you can connect to a HT receiver with optical in and use these speakers in their full glory.
And since they are small and relatively light (though much heavier than even good PC speakers) you can place them anywhere - upside down even if you are placing them high - and they are cake to mount. NanoSats Rock!