Re: head phones!!!!
Those (the Razers) are nice headphones. Especially for gaming, if the primary use for these is music I'd get a different pair. But the USB port is just for the mic I think, you still need to plug in either the HD-DAI or use the adapter for regular analog.
C2D E6600 | 4GB DDR2-800 | 9800GTX+ | Asus P5B-E | 150GB Raptor | 320GB 7200.10 | 750W Xigmatek PSU