I am working on an installation for New Langton Arts in San Francisco. I would like to have as many channels of output as possible. This being my first time needing a lot of audio outputs I am asking for advice on how to set it up the best. I will be using two g4 powerbooks. I don't no much about what hardware is best to use aswell. It seems that I might not be able to have more that 8 channels from each cpu interface. Could I have more?