There have been some discussions previously on the forum about a QA job as getting your foot in the door in the industry, and this article might help prepare you for what you're in for!
"Life is not all fun and games for Alamano, though. It's all games -- with little time left for sleeping or eating, at least during the busy months before Christmas. The longest week he has logged was 106 hours, and 60-hour- plus weeks are typical in deadline crunches, he said."
Ok, that's pretty much all they say about being a game tester, but there's tonnes more sobering details over at Slashdot! Read the article at sfgate.com.