Hey guys,
I have an old blueberry G3 tower that I think I'm going to turn into a music server. I would like to hook the G3 up to my receiever, install remote desktop on the mac, and then I could wirelessly control my music from my laptop

My question is, what sound card would you recommend to get the job done? I just want to output to my receiver, preferably optical coax. Can I buy any sound card from newegg or does it have to support macs?
Edit: I also have a digidesign M-Box, that has optical coax out on it. Could I hook that up via usb and use that?