I have the Turtle Beach PX21's and their amazing. Definitely great for playing MW2 (can hear people's footsteps really clearly) haven't really helped me play Black Ops though, probably because it's shit and the sound files aren't any good. Also use them for watching films and listening to music. They're really comfortable, not like the official Sony headset. Also the mic is exceptionally clear; me and a few friends use them to talk through Skype. Also, I play quite a lot at night and having these on is just like playing in surround sound. I think they create a sort of artificial surround sound because it actually isn't although, for around £80, I think you can buy a Turtle Beach Dolby Surround Sound processor which changes the Turtle Beach's into a 7.1 Surround Sound system. Not sure if it's worth it but, it all comes down to personal preference. Hope that helped