Element vs. Signal vs. ???

For no reason other than experimentation and the need for bi-wired cables to replace cheap stock jumper plates, I want to change my speaker cables and interconnects. My system is:

Von Schweikert VR-2s
Roksan Kandy KC 1 CD Player
Blue Circle CS Integrated
12ft Straightwire Stage Speaker Cable
3ft Mas Grey Silver Interconnects

I have seen very good reviews for Signal cable, anti-cables (P. Speltz) and more recently Element cables. I'm willing to spend up to $400 for the Speaker cables and $150 for interconnects. Any recommendations? Should I go with silver throughout? VS recommend silver speaker cables, but I'd like to know your recommendations or experiences with similar budgets and equipment as mine.

Thanks for your help,