I have a media center pc w/ built-in infrared.
I have configured a harmony remote to do ALMOST everything with it (plasma tv, cable boxes, etc).
The only thing i can't do is to change sound inputs via my pc (my speaker system is connected to my pc, and i have to keep manually changing audio input in the creative soundblaster mixer panel app). It is driving me NUTS to have to get up and change this every single time!!!

Question is which remote pc/software package will:
- utilize my existing infrared port (though i will add another IR via usb if i must)
- have some kind of software app where i can create a macro to change inputs
- finally, have harmony learn this IR code so that it can change my pc sound input automatically

Is this asking too much????