You really have to hear these cables in your system to understand what's happening and whether you like it. I found the SC3's to be too much of a good thing at one point... It was like a fantasy-land, beyond reality. But most folks liked this sound better than anything else. Also the Super Q IC's did something weird in the upper mids that bugged me in my system.. The Super Q SC's had no issues, just transparency... To date, the best SC for the money I've found.
So, I settled on the Ultraconductors IC's w/ Super Q SC's because they just synergized with the system. But who knows, maybe I'm due for a comparison to be sure now that my tweeters are replaced and I've put more resistence to them... But everyone who has listened to my system was usually hearing it on the $200 UC2's for the most part.
Oh, the AC+ is a fine power cord, I've heard it do very good things. I'm not sold on the digital being 'all that' but I know Shane has heard it do well for his system.
Which brings me back to the point, you have to try this stuff on your gear to see if really works for you. I have to say though, that I have not heard of a more universally accepted improvement as I have with JPS.
-C