I think unplugging the wireless access point will do for now. Later I'll either route the airport through a different network or switch to SFS
Installed many things, was shocked to find that not only did the sound blaster live S/PDIF output work right, it even supports volume control. (The other S/PDIF out device doesn't let xmms change the volume for some reason).
I was able to listen to the audio off of a dvd, but need to install some new video drivers before I can see the dvd.