I'll never stop to say that monitors are useless , waste of room and even wrong resolution most of the time .
I like to run cable from Macpro directly to christies , witch native matrix it's 1400 x 1050 . If you connect a monitorz between the very expensive 1400 x 1050 matrix will have to follow the very cheep monitor resolution ...
I use a macbook pro to remote control and setup the catalyst servers ( head less ) Using ethernet cable , I can even go faraway from the servers .
People want useless preview ? Good we have it , since lasted release R the wizard make possible to get preview out of a mix .
Or even better go to convert all your library in a very lowres format and run your macbook pro as monitor as remote of the big Mac pro .