First, BB and CC will most likely tell you that the only right cable for your system is a Monster Cable. Of course, they'll also tell you that you need to have the most expensive Monster Cable possible. I personally think Monster Cables look nice and are built relatively well. They're just wwwaaaayyyyy overpriced. I always go and pick out the Acoustic Research brand which is usually located in some dark corner of the store on the hidden level which is only accessed via a sewer drain that plays different music when you exit it. And when you find the BB employees yell at you for not listening to them and their lack of expertise. Not that I'm an expert in this field. But, I did sleep at a Holiday Inn last night...
Anyways, with that all said. I've started only buying video cables for my setups for audio and video:
1) They're rated at 75 ohms
2) Some companies shield video cables better than audio cables - probably not a factor
3) I'm finding them to be cheaper than audio cables when all connections are added together.
4) They both carry an audio (digital) signal and I don't have to worry about what cable I'm using.
If you can wait a few days to finish connecting everything, this is what I would recommend based on price, build, and pure spite of BB and CC Monster Cable pushing.
3 foot
http://www.accessories4less.com/cgi-bin/item/PR100
6 foot
http://www.accessories4less.com/cgi-bin/item/PR101
My current subwoofer cable, RCA-RCA connectionn, is an Acoustic Research video cable. I've been very happy. Good build, looks nice, good price.
I only recently came upon the other cables through any members recommendation.
If the connections are wrong, try this site:
http://www.bluejeanscable.com/
or
http://www.monoprice.com
I hope this helps.
-pat