You should give Virtual Dynamics a try. I have their Signature Series biwire cables and they sound awesome.
IN this price range you also need to hear the Clarity speaker cable from Empirical Audio-received a rave review in the first Positive Feedback Online issue-also go to the Empirical web page -empiricalaudio.com-this cable really added a lot of focus and claity to my system-tbis was one cable that does exactly as advertised.
I second the Virtual Dynamics recommendation. I would go for the NITE series if you can afford it. I recommend getting them new from Rick as he is constantly improving his products and the newest stuff sounds great! I have the NITE Power Cord ($1500) and the Reference Speaker cables. My NITE Interconnects should get here at about the same time as my Audio Aero MK II :) Good luck, Eric.
Maple Audio Tranquility - The most recent publication of the Inner Ear Report advises that Maple Audio Works claims they are "Canada's Premier Cable Manufacturer" and the Inner Ear advises they just might be. Nordost Valhalla rated 4 stars with the IER - Maple's Tranquility was 3.5 stars, pretty damn close at a lot less money!
Wonderful hand craftsmanship with a proprietary weaving process using solid copper conductors.
I use Maple cables so please accept that I do have a bias
check em out www.mapleaudio.com