Don't get the 2.4 GHZ transmitters and receivers with RCA analog outputs and inputs. Tried that and the audio bandwidth is terrible.
You can use the AudioTron from TurtleBeach http://www.turtlebeach.com/site/products/audiotron/producthome.asp with cat5, a phone line network if you have phone jacks close enough or you can use 802.11b wireless peer to peer networking.
The AudioTron has a S/PDIF TOSlink to connect to a DAC.
I set up one of these for my friend wireless network and all and for MP3's it works quite well.
You can use the AudioTron from TurtleBeach http://www.turtlebeach.com/site/products/audiotron/producthome.asp with cat5, a phone line network if you have phone jacks close enough or you can use 802.11b wireless peer to peer networking.
The AudioTron has a S/PDIF TOSlink to connect to a DAC.
I set up one of these for my friend wireless network and all and for MP3's it works quite well.