is there anyway i can rig up some cable configuration to do what you are doing?

Just run a cable from the line out of your box, to the line in on your computer. It will probably have to be a cable that has male rca on one end, and a male headphone type jack on the other (but this really just depends on what kind of input you have on your computer). Or, if you have digital out on your box, and digital in on your computer, thats even better.