Here is part of what I have (it circles the room). In all I have 8 Macs (running A/UX 3.0 up to Mac OS X 10.1), 3 Silicon Graphics workstations, 2 Sun workstations, and 3 PCs (2 running Rhapsody DR2 for Intel, the other has both OPENSTEP 4.2 and Red Hat Linux 6.1). The operating systems up on my network right now are Mac OS X 10.1, Rhapsody DR 2, Mac OS 8.1, Mac OS 8.6, A/UX 3.0, Solaris 7 and Irix 6.2. I only turn the monitors of the system that I am actually working with on at any point in time because they generate so much heat.