Canare 4S11. I replaced some very expensive cables in my he-man rig with these and couldn't be happier. Retails for about $1.50 a feet unterminated and is very easy to terminate yourself or some places sell it predone for not a whole lot more.
I have tried a lot of homemade and fairly expensive speaker cables, but the most consistent cable I have used with many amps and speakers is Kimber 4TC. Find a used pair at your price, and you will have a great cable.