You can have both going at the same time. You just need the right software to use and correct settings.
Get the media player Duam Player or called Pot Player
Make sure your main audio is set to the XFi soundcard.
In CCC make sure that each screen is extended. So your main will be your desktop. Your TV will just have your desktop wallpaper.
What will happen is when you play a video, you will have to drag it across your desktop to the other screen, make it full screen and sound will come out your HDMI, and you can game on your PC with your soundcard.
make sure your TV is on and plugged in.
In duam player, right click on screen and a bunch of stuff comes up.
Select Audio, then Audio Renderer. Select AMD HDMI Output.
next select Audio, then S/PDIF Audio renderer. Slect AMD HDMI Output
Depending on what your connected too, be just TV or home theater 5.1/7.1 system, there are more settings to be done.Edited by Sp33d Junki3 - 3/3/12 at 9:07pm