How much money on speaker cable?

I´d suggest you to try Evidence Audio Cables. They are made originally for electric guitar, bass or musical instrument amps. They sound very controlled and neutral and they are cheaper than the so called "high end" cables. This triggers an interesting question: Why electric instrument amps and cables, with the same complex or not craftmanship, are cheaper than "high end" equipment?

Defintiely check out Clear Day Solid Core Speaker Cables. Outstanding value and less than $500

If you like fashionable cables look at VooDoo Cable, they look like they have some nice products. If it was not for the economy slump affecting my income I would switch from my Cardas Neutral Reference. Like a woman, my system has to look as good as the performance.

i recently demoed one of the solid silver core (shotgun config) speaker cables & it was not a good match at all in my system. it was very clear & detailed but lacked harmonics & body. try before you buy if you can...

Tip from a pro: DIY.
Speakercables must be seen as a part of the amps powercircuit and should be kept short, thick and solid. Just be aware that solid copper needs some beating to open up.