ps. Powerstrip is best program for gamma shortcut keys. E.g. ATI drivers has shortcuts already integrated but the range of gamma is just too small and it doesn't always work on every game.
I think it'd be good too, becuase in most games I like a default gamma level (1.3), but in LFS I like to bump it up to a nice 1.6, just because it looks better, especially after getting used to 1.6.