Preamp Rec

I am in the process of upgrading my old system and, so far, have replaced my old Definitive BP8's with PSB Synchrony One Bs. Next step is a replacement of my old Adcom GTP 555 with a new preamp followed by replacing my old NAD cd player. For amplification, I am going to stick with my Adcom GFA-535ii for now.

Total budget for the preamp/CD combo is $3000. Would love to get people's opinions on what I should be looking at when I head to the local stereo stores.

Thanks in advance!