I have an Audigy II card on my machine, works well, no strange noises. My old Live was also quiet, noise floor on it was far lower than anything I connected to it for an input. Don't have exact figures but watching a VU meter in something like Cool Edit would jump off the infinity mark to about -48 with the phono pre plugged in, and to about -30 when the needle fell. I don't use Windows anymore, and the Creative cards have excellent open source driver support, so I tend to stay with them for practical reasons as well. That, and its just a decent card for the money. Also, compared the the onboard, it sounds much better. The onboard had odd interference issues from other hardware, the mouse and hard drive would create static. None of that from the Creative cards.