Guys,
I had the opportunity to try Anti-cable Ref 3 power cord in my system and I can tell you first hand that it's possibly the best power cord I have used at this price point by a large margin.
These cables do require extensive break-in but you will be rewarded with a deep/wide soundstage, very good high frequency extension, precise image localization and the tone of this cable is beautiful...
If you're in the market for a PC, give the Ref 3 a try but be warned that you may end up selling your mega dollar cables :)