Linn DS, and multiple MAC OS machines

[minidravid]

Hi, I am a newbie and was pointed to this site by the LINN forum.
I have 2 Apple machines (MAC Pro and IMAC) with music on then both. I am planning to rip my CDs onto an external hard drive and connect it to the IMAC. I have a LInn DS and want to be able to play the music resident on the Mac Pro, IMAC and external drive on the LInn DS as well other (capable) devices on the netwrok.
I also want to be able to control the music playback from both computers which I plan to do through Kinsky

Would like tio know what I need to download / install on which computer.
Also when ripping, which is preferable ALAC or FLAC?
Thanks in advance