How to AirPlay or stream video to PlayStation 3 from OS X?
Just came looking to see if I could use Airplay, as it would be very convenient to be able to stream from any of my devices.  

However, I have been using medialink for years, using my mac mini as a media server.  It had some troubles when it first came out, but in recent years I've found it extremely reliable, quality is excellent for all definitions.