So I have a DAC; now what Player should I look at?

IIRC the Bluesound Node 2 has a built-in DAC. Why should the OP pay for another DAC?

Synology or QNAP NAS & a Sonore microRendu would be hard to beat. 
Search archives, so many times similar has recently been answered. Cheers, 
Spencer 

The BlueSound Node 2 is excellent and connected to a good DAC, can provide great sound quality.

To the person who asked "Why should the OP pay for another DAC?" I would say "why not?". The BlueSound’s main purpose is to be a streamer. The DAC is a nice throw in, but the DAC in a $500 music streamer is likely to to be inferior to the $10,000 purpose built DAC the OP has.

I have my BlueSound Node 2 connected to my Auralic Vega DAC and it sounds wonderful.

There are a number of Auralic Aries showing up here in the $800-1000 range I use it's little brother, the Aries Mini.  It's a very useful device functions great and does everything the aforementioned Node does, with better sound quality. At least to some. Good luck with your new setup!

Products in the Bryston BDP line are all great network transports. BDP-1 used well under $1000, though a bit long in the tooth. BDP-Pi is an interesting product. I use Raspberry Pis in some setups and they are great with the Allo Digione products, but require some messing around with Linux to get them up and running.