As of now there's a big discount on ap-810 power cables here: http://www.mcmelectronics.com/product/58-13630
I purchased 6 of them at 3.09 each and $9 shipping, so like $27.50 total. They are 14x3 awg, shielded and ferrite bead, and gold-plated power cables. After 15 hours of initial use they seem to be quite good when used on my ac 215 power conditioner and computer connected to it and outputting usb, better highs, light sweet mids, quick dynamics, and coherent imaging compared to my stock unshielded 14 awg power cables, on headphone amp and receiver it has less black background though, and not too full-bodied lows and mids.
Maybe it will improve with more burn-in, but if not, I still think it's a great power cable and if anyone here has yet to get power cables definitely a good opportunity to get enough cables for your audio system and computer etc.
On the same topic, how many of you would be interested if audio-gd made $20-30 14 awg power cables? Their $75/4.5ft or $60/3ft power cables are a bit pricey, especially when you have to buy like 6 for your audio system. I am thinking about asking him but maybe they already offer too much products, and heh.. maybe liquidation prices on audiophile cables may be more common than I think.