wireless digital audio?! (SPDIF-> wireless ->SPDIF)

Hi!

Is there any product on the market that supports wireless transmission of a
digital audio signal from a SPDIF plug? The signal being everything from
plain stereo to 5.1 dolby surround?

I have a PC with digital out, wich is connected through SPDIF to a surround
reciever. This setup plays anything from my PC, stereo, 5.1, DTS etc. But I
want to get rid of the cabling and still have the digital audio (and
video-transmission as well if possible), and I can't find a single solution
that simlpy send a digital audio signal wirelessly!! There are plenty of
analog stereo wireless audio/video transmitters though...

Any thoughts??

tommy