automatically use USB headset

[John G. Heim]

Hi,

I've got all the linux machines I am responsible for (like 150) set up in 
udev so that when I plug in my tripletalk, it loads the speakup module and 
starts talking. I can make it do something similar with my USB headset but 
the problem is that the linux sound system doesn't automatically switch to 
using the USB headset for sound. Anybody know how to get linux to 
automatically use a USB headset for sound when you plug it in?