Linux as a gaming machine?
I have given up being a gamer several years ago but with new and exciting games being announced and released, I might just resurrect the gamer in me. 
When you think of PC games, there is only one main OS that comes to mind and it is not Linux… not anymore!
Bit-tech's Brett Thomas featured games, both free and non-free, available on Linux. Mr. Thomas covers native linux games as well as games played using an emulated or virtualized environment like using Transgaming's Cedega.
Linux gaming has definitely gone a long way and with more and more folks switching to Linux, I am pretty confident that games will soon match those available on that main gaming OS.