NEED HELP CHOOSING NEW DAC

Price range will determine part of your question. I think you should listen to the new upsampling DAC technologies from Perp. Tech., Musical Fidelity, MSB, or Bel Canto.

If you have lots of rebook CD's I think an upsampling DAC is the way to go.

It seems to me that using CD303/200 as a transport will be a waste of bucks. Would you also consider getting a dedicated CDT? I bet you should spend lots of money to beat the DAC inside your CD player.

So my DAC inside the cary is good enough, price range used 2k. Thanks

...not only good but realy dedicated to work with the transport inside of your one box Cary.
Tough job to choose the right one that will outperform in your case. I'm affraid to give you advice for the one but you might research Mark Levinson older models used that are extreamly fast and revealing. Somehow grab a chance to listen first since in almost any case mating DAC with one-box CD-player needs experiments.

I thought my Electrocompaniet CD player had a good built in DAC much like the Cary and that to improve would be hard to do at any price. I then heard a Kora Hermes Dac with Telefunken tubes and decided to try one out - for 1500 plus a bit more to upgrade tubes I reached a better situation for what I call minimum High end dollar. The EC is a great transport top loader without a drawer mechanism which makes it quick change in recording . I can make a direct comparison in its DAC and the Kora and you just do not want to listen to the EC by itself. the Dodson was my second choice but a lot more money at the time.