For a couple of years, I have used Connect360 from Nullriver to connect my Mac to an Xbox360. There is now also a PS3 in the home plus my stereo receiver can connect to media servers directly.

It's been a year or so since I looked into it, but the 360 will with the caveat that it needs a special version of WMP showing it the content. This was one a Windows Home Media server. It wasn't until ...