I don't agree that Debian is a good choice for a gamer - it sacrifices performance and features for stability, which is not ideal for gamers, who probably want to run the newest drivers and featuresets. Don't get me wrong, I really like Debian, but as an server os, not for a gaming machine. Something based on Arch or Fedora is a lot better for the rapidly changing environment we are talking about, they can adapt much quicker than Debian.