Power Cable or Power Conditioner?

You might consider getting rid of your power cords altogether and purchase in-line power conditioners for each component.

A good or better power conditioner will almost always will provide better soundstaging, sibilants, and lowered noise-floor over a good or better rated power cord.

I'm using Foundation Research LC-2 and LC-1 in-line power conditioners. They are very good at what they do but are hard to find.

-IMO

I also used a good quality Tripp-Lite surge protector/noise filter and Transparent PowerLink Plus from the Tripp-Lite to the Creek 5350SE Integrated amp. Compared to a stock power cord, the Transparent with the filter networks took out some of the hardness in the sound, brought out more of the harmonics and increased the transparency - worth every $120 of the price.

I bought a Monster Cable HTS-2500 2 months ago to replace the Tripp-Lite and that made a even more worthwile improvement. Now the harmonic structure is even better, the transparency is greatly increased, the images are better focused, the upper and midbass are fuller with more impact and the sound is more naturally sweet. The improvement in musicality is easily perceived.

The Monster Power Center HTS-2500 brought a more worthwhile performance improvement than the powercord. You can find a good used HTS-2500 on Audiogon for about $150.00. Hope my experience helps you.

There are some great recipes for power cords on the audio asylum website. For under $100 you can build a power cord that would cost considerably more. The major cost to you is time. It will probably take two hours to make your first cord.
The Harmonic Discord website has recipes also if you want to look around more.
I've used some of the less expensive power line conditioners and as a rule I think they get in the way of the music. The better ones (i.e. ps audio/tice) sound a lot better and actually work.
Good luck

Hi Squiddy. Here is another thought. I have tried the Virtual dynamics PC's. They are to be used without power conditioners direct into the wall. Now I do both. I use the VD audition on the amp directly into the wall. I have a panamax surge protector plugged into a monster hts1000. The monster is plugged into a VD cryoed power 2 extension cord into the wall. Friends were in on the weekend. They haden't heard the system before the cords and we played dire straits "loud". "Iron Hand" from "On Every Street". The sound was clear, deep, powerful. We listened in awe. We had heard them perform this live when they had toured. The point of this is you have a choice. You could pick up a used or discontinued monster hts1000[highly recomended] and get a vd power cord and use it on the amp. Later you could put a vd extension cord on the monster and lift its performance again. Do lift your power conditioner off the floor or carpet. Bricks work nicely.