Best CD player for under $6000 used?


I'm looking for a good front end for my system. Any ideas? I thought about the Wadia 861se. Note: I also plan on updating my amp and speakers. Thanks!
talon4
Krell KPS-28c - very smooth, open, and neutral. If you can find one for around $3200.
I think that I'll probably end up with the Wadia 861se, but I was wondering if I missed any potential players-hence the thread. Mejames- Do you feel that the Great Northern Sound mod was worth the investment? Thanks Guys! Stan
Um, Chelentano, wrong thread. Your $600 thread is still out there, don't worry.