I forgot to mention this because the thread disapeared. I fixed my buzzing problem, and it had nothing to do with the computer or the speakers. I don't know enough about cabling, but all I can say is that there are too many wires coming out of the back of my computer. I moved them around a bit until my buzzing stopped, and now I litteraly cannot get it to buzz. There was nothing wrong with my sound card or computer.

My advice: jiggle your wires