Whatever you do, don't just go for the cheapest wiring you can buy in bulk. I use dual shield at my company, and it works great, but it also is high quality dual shield from CommScope. But I've seen store bought 'dual shield' that had a whole 6 wires wrapped in the jacket. There should be a whole mess of aluminum braiding in the cable. This is what we use at work »
www.commscope.com/catalo ··· d=46832r I would almost recommend you get quad shield, just because I would think that it would tend to be of higher quality. Quad shield can be difficult to put connectors on, but generally if the wiring is new (as opposed to being out in the sun and brittle) I don't really have problems putting on connectors.