+1 on DH Labs. Just got a pair of DH Labs BL-1 Series 2 interconnects used. Two pairs for $85 shipped!
I originally had DH Labs White Lightning interconnects based on the recommendation of a local dealer whose ears I trust. The White Lightnings sounded better to me than the entry level Audioquests from their Bridges and Tunnels line of cables. The BL-1s are a noticeable step up from the White Lightning in terms of sounding more transparent and conveying air and ambient cues in the music. If I ever get bored, I might try some more expensive interconnects, but I'm mighty impressed with the DH Labs BL-1s.