call up richard vandersteen, he is a great guy and can offer insight into what you are looking to acomplish with the speaker cable
he designs his gear around specific amps & speaker cables and such.
i would start there and ask other vandersteen 3 owners to what is synergistic with them.
in regards to a neutral interconnect....hummm.....what is your source, pre, and amp ? looking at your budget i would consider the:
xlo signiture 1 (very, very netural and transparent, can be a smige lean in the mid. outstanding bass and imaging. can be found used for $125 to $200 (they sell really quick)
discovery plus 4 ( similar to the xlo, but a shade warmer and nice mid bloom - outstanding bargain @ $150-$175 used)
the 2 above cables were originally $600/meter cables.
the coincident is nice, but the top is pulled back a smige.not bad but the all the other have more refined extension at both ends.
the straightwire sernade....awesome bottom end ( on par or a little better than the xlo, nice top and good imaging..nice bloom in the mid...has a "big-dramatic full" and dynamic sound. can be found for $175 used.
for speaker cables , check out the discovery 1-2-3 from discovery direct. the cable is TAS & stereophile reccomended. the owner is a true gentleman. if you look for reviews in discovery you will not find any bad press or remarks. i think you can start with a single bi--wire run and then upgrade to a shotgun config when you have some more funds-the differenc is dramatic.
mahollo from san diego,
mike