I have found DIY cables are vastly superior to anything manufactured, for the amount of money you're putting in. I would recommend using a couple of Furutech FI-15 Plus power connectors (IEC & male), in either rhodium or gold plated depending on what sound you're after. For the Rhodium IEC & Male connectors, that's about $120 shipped from either Samtech or Hi-Fi Heaven (both are good sources). For the cable, you could go cheap and get some DH Labs at $5-8 per foot. Or spend more and look at Neotech NEP-3002 or NEP-3003 ($20-30 per foot). Be aware that the "Mk II" Neotech cables do have some silver-plated conductors.
Be aware the FI-15 Plus connectors only support a cable up to 15mm thick (0.59"). However, they are excellent connectors to use for the money! I have found the terminations on the cable have just as much impact to the sound as the power cord itself.