I know that it is getting close to Halloween. Hopefully this will not be that hard of a project to complete. You probably could do this with a really old machine, but then you would be messing with jumpers and having to do some real fancy setup.

What do we need to start with.
A reasonably new pc (minimum 256meg ram empty 10 gig hard drive). with four spare pci slots.
Four sets of speakers with built in amps and input extension cables. I had some spares.
Linux that supports pulse audio. Ubuntu 9.04 should work.
Up to four microphones.

1. install ubuntu
2 install audacity in and from ubuntu.
3. get on the internet and look for some scary sound and music. if you have several microphones, you can create your own.