What is the best power cable under $200.00 retail?

I agree w/ Macdad that upgrading source or amp is way to go; IF you have the $$$.

In my system, upgrading amp, pre, DAC or speakers to something that would make appreciable improvement is not affordable. However, for under $100 I can get a little improvment by replacing stock PCs with PCs from Signal, Element, Zebra or some of the other companies mentioned in this thread.

Disclaimer:

I am the owner of PNF Audio.

Check out our Power Cords, they are an exceptional deal. We use real WattGate Connectors and we are having a 15% off sale on all cable @ www.pnfaudio.com

USE COUPON CODE- Audiogon

I nominate the PS Audio Prelude, or whatever is the current equivalent iteration. I'm using one with my integrated amp, so I think it would be a good match with your Cambridge.

Vintage Audio Labs (ebay) Nice Rhodium ends and tight fit.

Tube Audio Design Iron Lung Jellyfish PC- $30.00. I tried it, as well as a MAC HC, Signal Magic PC, and Audio Horizons Transparency, In my system, it was the best, and for the money it is hard to beat. I have my whole HT setup wired with these PC's. I am not saying it is the best cord out there, but under $200, it is tough to beat IMHO. YMMV.