You will have no problem doing what you want to do, I do it myself and actually drive 3 pairs of speakers all over the house from one Soundblaster Audigy Soundcard.
If you want to send the signal to the receiver with a digital coax in, just buy an F - RCA convertor from Radio Shack and run...
Does anyone have any links direcly to the products I would need on these sites. I cannot seem to find anything.. I can get to the sites, but searching through the product listings is a nightmare. The only site that is decent to search through is parts express
I want to make 3 - 12ft component...