Doesn't look like those satellite speakers have speaker wire terminals but rather the pre-wired together with one connection to the subwoofer. If that is the case one could cut open the cord and separate. Speaker without volume control would only have two wires the one with volume control the speaker wires may not be easily known without taking the speaker container apart. This really may not be in your interest if is the case.
Another alternate would be add in bookshelf speakers and then keep the computer speakers for a computer room or something else.http://www.amazon.com/America-Rtrv44...776268&sr=8-15
In case you haven't thought of it you would need speaker wire for the speakers and a composite cable for the subwoofer.
Sub signal cable- http://www.amazon.com/Acoustic-Resea...5782478&sr=1-1
Speaker wire- http://www.amazon.com/RCA-AH1450SN-1...5783327&sr=1-2
I just listed a few idea's, recomend researching into each component. From what I have read on the 8350 and what I know of the Pioneer recievers I think you would be satisfied with those. When you go the reciever and seperate speaker route you can upgrade, replace single components vs needing a whole set up.
Total minus shipping $1498.89 for the 8350, Pioneer listed, Polk sub, Bic bookshelfs and speaker wire and sub wire.
Keep in mind there are other ways to go about it but this is one that may fit your needs.