As for the other computer sounds, I'm sure there is discussion on the sound forum for that. As a side note, I never recommend using a computer for a show unless it is built for that purpose. Certainly, if it is your computer, you can modify it however you choose, but if it is not your machine, then make sure that you have permission to adjust it. Things that I recommend adjusting are all service audibles (that click or ping that windows will make when selecting something) as well as
screen savers and
power saving features. There's nothing like doing a presentation when the
screen suddenly switches to a
screen saver, and I've heard horror stories about some peoples
screen savers as well, but that's another thread.
As for backing up files, I understand that hard drives are becoming immense in size and standard methods of backup can seem daunting (50 dvds = 235gb uncompressed) and may not be ideal.
Network backup is common and is ideal in this type of situation. As for the DRM lawyers, I don't think that is an issue. If the school has the information on a closed
network, then it's not much different than having a library. Anyone can go to the library and access that music against the normal protocols of distribution (you are not supposed to check out a CD and rip it to your hard drive).
I agree that having the information for show purposes on a local hard drive is the best. When I worked corporate AV, as long as the client would allow, I would put all of their presentations and material directly on my hard drive instead of running it from CD or memory stick. It just works better, especially when it is
cue time dependant.