Replacement for Nordost Cables in my system?

Hi,

My system is as follows:
VPI Scout/JMW9 (hopefully upgraded to a VPI Classic soon)
Whest PS.30R Phono Stage
Musical Fidelity A5CR Pre Amp
2xMusical Fidelity A3CR Power Amps bi-wired
ProAc D15 Speakers
Nordost Red Dawn Speaker Cable
Nordost SPM/Red Dawn Interconnects

I like my system but I'm a bit disappointed with the slight harshness in the top end, especially in reproduction of sibilance so I'm considering selling my expensive Nordost Cables to replace them with cables that suit my system better. If I spend less then that money would be used for future upgrades.

I listen mostly to Indie and rock/pop
Initial research suggests that VdH may be a better match, any suggestions ?

Thanks in advance.