power cable tryout High fidelity cables has me wondering..... need suggestions now

Last Saturday a good friend brought over a power cord to give a try in my system, one of Rick Schultz High Fidelity Cables, friend said he paid around $5000 not sure the model but they have large magnets on them, i think.  I did not know he was bringing this cable so it was a surprise. 

I have a Mac C2700 preamp, Mac mc301 mono amps, driving some large OB's from Tri-Art supported by Rel subs,  source was my Acoustic Solid turntable with a Sumiko Pear wood calibration 2 cart.  I have run PS audio AC5 series forever now (approx. $500 each), I figured they were good enough and I would not hear much if any difference. Not enough for me to rush out and look at better. 

Well let me tell you my friends I was shocked how different putting this cable on my preamp would make in the sound for the positive. It was on order of putting in a new Preamp or new tubes. not subtle in anyway, to be honest i was a bit angry at how much it changed my system. I was behind my listening chair, in my kitchen ( listening room and kitchen are one large room) filling a glass of water and I just sighed when he started plying music. I didn't even have to be in the sweet spot let alone close, hell my head was in my fridge). it was like the whole system lost its hash. It cleared up the top end so much i was able to raise the tuning point on my speakers to increase the top end a bit. everything cleared up became more detailed without any strain, sibilance etc.  one dam cable....

Darn it now i need to look at power cables and other cables as well... 

well I cannot afforded to put $5000 cables throughout my system so I'm looking for suggestions on something a little less, under $2k each sort of thing. But that can give me a good portion of what these gave. any suggestions. used-new I'm not particular.

One thing i wont be buying anymore PS Audio power cables, probably ok for $500 but once you hear it you cannot unhear it. as they say.

My whole conception of power cables has been turned upside down.....