Best speaker cables for longer runs


I realize people like to keep their speaker cables short, but a redesign of my rack placement may necessitate runs of 20 feet or more. Any particular brands work well under such circumstances?

I have a theta dreadnaught ii and b&w 802d. Cost may be an issue as price does mount up.
diw
I will run Bi wire. Looking at the anti cable, if you run a 20' run biwire it's not actually so cheap. Although possibly still a bargain.

Anyone have any opinion on MIT for this purpose?

Steveaudio, it is certainly true there is a big depreciation it with cable. Isn't that why we hang out at audiogon?
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Tvad,

I once had a certified NSF technician come to my house to calibrate my rear projection HDTV. He was not an "audio guy". He looked at my anti-cable speaker cable and asked me if it was some sort of modern art, before I told him that those red wires sticking up in the air were speaker cables. After he stared at me for a second, he shrugged his shoulders and went to work. 20 feet of red wire! I gotta see this!