Interconnect recommendations, please

I've recently revamped my system with a new integrated amp (Teac AI-2000) and new DAC (Burson DA-160). Overall I'm really happy with the changes and now am looking to find the right ICs to dial the sound the rest of the way in...

Specifically I'd like to find some ICs that will bring out a bit of high-end sparkle, inner detail, and air/openness to the sound.

My current ICs are Cardas Quadlink 5C so I'm looking for ideas that would provide a relative improvement over those in the areas noted above. Budget is about $150-$200 for a 1M pair, new or used.

Thanks in advance for your suggestions!