I just got my grado sr-60's after ignoring them due to price for over a year. Well, I ponied up and goddamn, they are amazing. So clear and beautiful, that I have to relisten to a lot of my music again.
BUT! I wouldn't say that they're great for gaming. When I think of gaming sound, I think of boomier bass and more thump-power to feel the bullets etc.
While the grados are amazing, they are a little light on bass, and also leak a lot of sound.
Still excellent, and for anyone wanting to really hear music (I would take a set of $150 grados over $300 klipsch 4.1s for music), a great set of headphones is amazing.