Which of these power cords ?


I'm looking to upgrade my sound with upgraded power cords. Given I've got a tube preamp, 2 mono block tube amps, Aurender DAC and 2 Martin Logan speakers - we're talking up to 7 power cords so I'd like to keep the total cost for all of them to $1000ish. 

And some suggest going with one brand, to get the biggest benefit.

Brands on short list include:
Suggestions?

cdc2
Can't go wrong with DH Labs pc's, I agree with stereo5, The Pangea pc's dulled everything I tried it with.
I use a mix of Wireworld, VooDoo, and Shunyata cables all bought used or on sale at a deep discount.  Works for me.
Maybe try transparent performance power cords they are $125 for 1m cord. I like them for build quality.