Problem: I've been listening to my turntable through my BS1 in my office, but want to hear it in the other rooms, and with my better speakers... but I still want to hear it in my office, and, with today's tough economy, I don't want to buy any new components. I also have a BeoPort in the closet that I haven't setup since I moved... AirportExpress was good enough until I could run another ML connection (but not really - dropped out when BeoCom1 was in use, had to pry the laptop away from the kids to remote into the Mac to change songs... so I ended up mostly listening to CDs, and, most of the time, not listening, but looking for CDs that I could not locate).
Non-solution: Connect TT to BS9000 in living room and use ML to distribute audio. Straightforward, but there's no room for a TT in the living room, and I would not be able to hear it in the office since the BS1 doesn't do ML.
Solution: Take the BeoPort out of the closet and run ML to my office. Setup the BeoPort and ML with the Mac, but run the audio from the Mac into the BeoPort via a splitter (I'm using my daughter's cheapo headphone splitter for now). Now, take the output from the TT's pre-amp into the other side of the splitter. Connect the headphone output of the BeoPort to the AUX input of the BS1.
To listen to an LP: I select N.Music on the Beo4 in the room I want to listen, go to my office and stop iTunes and start the record. Return to the room and enjoy. Every 20 minutes, I get some exercise flipping/changing the LP. A little clunky (if you hit N.Music in a different room after the LP is started, then iTunes starts up again and the music is blended, in my office, I must turn on the BS1 before I hit N.Music or no audio comes out of the BeoPort), but it works for me 
Stan