Looking for some more detail oriented / brighter sounding power cords.

I have a couple components in one of my systems that could use just a little more sparkle. Any good power cord recommendations? Stuff like Oyaide and Cardas are too dark for this system.

So you absolutely won't consider your ICs or speaker cables instead?
Probably Nordost since it's all silver-plated wiring.  Maybe the Wireworld Silver Electra.

Like Erik said, all cords influence sound (power cords, interconnect, speaker cable).
More system info needed. 
BLE Rhodium 10 gauge on eBay will do the trick. $40.