I have never used them, but hear good things about the Anti-Cables. Paul Speltz in MN has amassed a huge fan club of followers many of which are converts from super high end cable to his stuff - pretty much rav reviews all the way around. And if I am not mistaken the Super 8's are not bi-wire, so you only need one set - $100 bucks, 10 foot pair!
Others to consider that are close in your price range:
DH Labs Silver Sonic Q-10,
JPSLabs UltraConductor 2,
Both have a very good following, probably in the $200-$450 range depending on length.