Good Jazz/Vocal Reference CD Recommendations?

I'm a big fan of Jazz/Vocal/Classical music and am in a never-ending quest of good reference CDs to bring out the best of my humble system. Any suggestions?

How about those Stereophile reference CD's? Anyone has any experience with them? Are they worth it? Any suggestion is greatly appreciated.

Current system:
VAC Avatar Integrated Tube Amp
Sonus Faber Grand Piano Speakers
Rega Planet 2000 CD Player
Nordost Blue Heaven IC & Bi-wired Speaker Cables