I think what you already have is better sounding than the budget suggestions.
In the "moderate" range $3-5K:
I have a Cary 303, and I would highly recommend a listen to either the Cary 303/200 or (better yet) the Cary 306/200. Check out reviews at enjoythemusic.com. Wonderful, musical players, tremendous soundstage, transparency, tonal color, bass and dynamics while remaining essentially neutral. HDCD and upsampling if you want it. These players are frequently discounted, BTW.
The new Ayre CX-7 may be very interesting. I have a friend who's in love with this player. There's always Wadia - 861 0r 301. Many folks swear by their Electrocompaniet ECM-1 MkIIs. There's quite a bit of buzz about the new Gamut player (rave in TAS), but this CDP may be lacking in LFs.
Above 6K...theres always the CD12. Still gorgeous after all these years. Burmeister has a new "budget" one box player for only 13K list. I love my Accuphase T109 tuner, and their expensive SACD/CD unit has many followers, but frankly, I think other players sound better.
There's been a lot of buzz about the French players: Audio Aero Capitole, Audio Mecca Mephisto, and the Metronome (forget which model). The Capitole was much in evidence at CES and Stereophile show. While the sound may be ravishing, there have also been some reliability issues with the first two players.
Head over to audioasylum or audiogon for more input. I personally don't like SACD very much, and since I own over 700 CDs, Redbook playback is my first priority.