Help with $600 to $800 integrated amp

I am reducing my home theatre to a 2 channel setup and am looking for a good integrated amp.

Current system
Nakamichi AV8 receiver
Marantz (Ah Thoebs 99') CD
Nordost Blue Heaven interconect
Marantz DV4200 DVD
NHT 1.5 main speakers
Kimber Kable 8TC speaker wire
NHT SA-1 sub amp with NHT 10' sub
NHT AC-1 center channel

I am selling the receiver and center channel for starters and am looking to get an integrated that will be good with a variety of music (jazz and electronica (lounge style) mostly, but also Rock, R&B and classical). I would like to continue using the sub as I enjoy the flexibilty I have over the bass. I like a smooth sound and rarely if ever use high volume. At some point in the future I plan to upgrade my speakers as well, but want to start with the amp.

I am looking for used or new. My consideration list currently has:
Classe Cap-80
Arcam A75 Plus (heard it and was really impressed)
Arcam A65 Plus
Creek 4330SE
Creek 5350R (maybe out of my price range)
Audio Refinement Complete

Any thoughts?