shortcut key for chaning playback device

I use three different sound outputs, speakers(creative SB), Speakers(Realtek), and Realtek digital output.

I was hoping there was a way to set up a shortcut key command, like ctrl,alt,(letter)

thanks.

If you can figure out how to do it through a batch file, shortcut or program, you could use AutoHotKey to run it for you with whatever key combination that you can think of.