Hey, I'm getting ready to start buying all the parts for my computer and making my own system. Right now, I have 4 speakers connected to my stereo. Two of which are those 3 speaker enclosure ones. I also have the possibility of adding another 2 small 6x12 speakers also. All of them are spliced, so how would I get them to plug into my computer and have them all work properly. I'm just gonna use the onboard audio from my mobo, it's an 8 channel ALC889A chipset. and it has 6 analog ports, and it has 1 coaxial and optical outputs. In the future I plan on getting a surround sound system but I don't have them money now, so any help with this would be well appreciated. Thanks in advance, Gavin.