I'm a cheap bastard when it comes to PC's.
R.E. Designs LNPA amps are using a DIY braided made with 9 runs of 16GA, Marinco plugs.
Behringer DCX2496 uses a DIY braided with 4 runs of 12GA, Wattgate plugs.
SB2/buffer usually fed by Bolder Cable Nitro
Hagerman Cornet usually fed by Bolder Cable Nitro
Rotel 1080 (woofer amp) is fed using a 12GA DIY cord made from some ultra flexible stuff I cut from a construction cord. Nothing high tech but works well for this use.
Front end gear is plugged into a modified BPT BP-2 Ultra and amps are plugged into another of the same. Both have their original 9GA cables and are plugged into dedicated 20A circuits using 10GA wire. The electrician hated pulling that.

Outlets are Oyiade SWO-XXX and Eagle hospital grade.
Then there is the one ultra spendy cord in my system. This is the Bybee Super Effect power cord from TweekGeek.com. I use this to feed my 100W OTL amp and it makes the amp noticeably quieter than any other cord. Note I can't afford to spend $3k on a power cord and have been fortunate enough to have this on long term loan from Mike Garner. It is very very nice and I also use it on my SB/Buffer when I'm not using the OTL. It works really well on the digital source, hell it works well on everything I've plugged it into.

Mike