I must be dense, because I'm not getting something with this whole streaming thing. Here's my situation - I have a NAS which has mp3 files. I have a receiver that has no network connection and no display device. What do I have to add to stream to the receiver?

I figure I could add a media box (WD and Seagate have them, or Popcornhour), but since I don't have a display device I wouldn't be able to select anything. Or do you guys initiate the streaming for another device, and then just have the receiver playing whatever it receives somehow?