Well, I'm going to disagree to some degree with the others here. While I do admit there are sonic differences between cd players, you'll achieve a higher level of change by looking at your room interaction and room treatments or lack thereof. Have you tried calming the first order reflections? Any carpets? Wall treatments behind the speaks? Corner traps? Are the Danes toe'd in too much causing beaming? I would try to exhaust all of my room interaction options first before buying new equipment. You'll get more bang for your buck.

Good luck.