Inspired to look around by the AxiomAir, here is another DIY streaming project for someone who has been looking for a reason to fiddle with a Raspberry Pi Rasberry Fi
I haven't tried it but it sounds promising. - Access to media on USB drives or NAS - a good choice of compatible remote control apps.
For less than $50 to get a computer that runs on free software, I've been looking for a reason to by a Raspberry Pi. This Fi OS just might be it.