I've got an iMac that I'm using as an HTPC. I'm using the mini-toslink connector to connect to my surround sound system for my TV. However when I'm not using that, I would like stereo sound from my computer. Airport express is not an option because I want to watch videos on the computer and it's ridiculous that I should have to pay $100 for the functionality. Is there some USB to 1/8" jack conversion or better yet a bluetooth to 1/8" jack product?