Two cable questions

One thing to remember regarding the silver versus copper conductivity debate. Silver oxide is conductive, copper oxide is not. Thus, as these conductors age, the disparity between them becomes greater. Silver is best(AC or DC), followed closely by copper, then a fair sized dropoff to gold.

This is to quantify the conductivity differences of silver and copper. Silver: 62.9, Copper: 60.7, Gold, 48.8. So, silver is actually 3.62% more conductive. Source is MIT's website.

You can buy 99.999% pure, teflon coated, 22 gauge solid core silver wire VERY cheaply(even cheaper for 50+ feet, $1.80/foot) at HomeGrown Audio. I will be using their version of Kimber KCAG interconnect. Only 2 differences: Kimber is stranded, this is solid core. The other difference, price 1 meter for $70(terminated)! I have used the KImber wire with great results, this may be even better.