Selecting output from multiple audio devices
I've got both the onboard audio and a USB audio device configured. In the yast sound configure tool, both devices produce sound when they are tested. What I'm not sure how to do is select which output device to use for playback normally. They're configured with the onboard device as  and the USB device as , so it seems like it's defaulting to the first device listed. Is there a way to change this?
sean@Iago:~> cat /proc/asound/cards
0 [I82801CAICH3 ]: ICH - Intel 82801CA-ICH3
Intel 82801CA-ICH3 with CS4205 at 0xd800, irq 5
1 [Audio ]: USB-Audio - USB Audio
C-Media INC. USB Audio at usb-0000:00:1d.0-1, full speed