When I ordered my Transporter, they had no inventory so they gave away Squeezeboxes to anyone waiting for a Transporter. I am also a MAC guy and I have since stored most of my favorite music (approx. 1,250 songs) on my MAC and I am using the slimdevices to access my music.
Sometimes the slimdevices will lose its pathway to the computer even though I am totally hard wired using a gateway modem. There is also the charming Apple router which works as well, if not better than the Gateway. I use CAT 5e cables.
Yes, sometimes I have to shut down the slimdevices to get them a few minutes to 'rest' and sometimes they lose their settings altogether. Still, I am very happy with them. The Transporter serves my high-end DAC using the AES/EBU outpot and I also use the Transporter's analog output to another room and the squeezebox serves yet another area.
The Transporter also has an output to control jitter but I don't have anything to plug it into, yet.