Thanks. I was wondering if/how they'd do movement within the headset but this way is fair enough. I could never get into TrackIR, it always felt unnatural. It tracked best with a reflective dot on my nose which wasn't a fantastic look; the headset gizmo they have now looks so much better. Shame it's not wireless. I suspect FaceTrackNoIR would be the same but it's worth a try as I'll probably get a new webcam soon anyway.
I use either on-board sound (with 2.1 speakers) or a USB "7.1" headset so I'm no expert but from what I hear, if you want to avoid Creative Labs (and serious people typically do), the Asus Xonar range is very good without paying insane audio professional costs.