I came across this piece of software that claims to be a solution for avoiding midi interface hardware. It is called MIDIoverLAN CP by MusicLAB (http://www.musiclab.com/products/rpl_info.htm). Although this software would not be useful for interfacing with traditional midi devices, it would be great for sending midi signals to other computers.
For example, in our potential setup, we could have a video computer and a audio computer. Sound Cue System would send the midi signal from the audio computer to trigger the video in the other computer.
Does anyone have any experience using MIDIoverLAN CP with SCS? Does MIDIoverLAN CP seem like it would be compatible with SCS?