What is the best CD player under $2000 ?

That's a no-brainer. An Ayre CX7e. It is an excellent player in and of itself, and you'll think you are hearing a miracle when it is matched with an Ayre AX7e and connected via balanced interconnects.

I looked at the Cambridge 840c and read some reviews. Looks promising. The upsampler is the newest generation and it uses dual differential DACs.

Hello,
I was at a friends house and heard his new Marantz SA-8001. This is a great sounding unit with good build quailty and looks plus it plays super audio. It also has a discrete output circuit instead of IC based op-amps.
I think it will be my next player plus its under $1000.00.

Cheers and Good Luck !!!
Bob

Rega will be on you list. Here's a look at the Saturn;
http://stereotimes.com/CD091806PS.shtml

The Apollo is well regarded also.

What is the rest of your system?

There are a few Used very nice Arcam FMJ 33 and 36 for sale here on audiogon, I recommend the Arcam FMJ very highly. A very musical enjoyable CDP. The many very positive reviews are spot on.