Wrp, it looks like you have been busy!
I am on the same path myself. Having room for only "one system" I have a combo 2CH/HT setup and have been trying to get the 2CH portion upgraded.
Curious, what was the order of things that you replaced as began the 2CH upgrade? It would appear that you split out the CD from the DVD player as well. I haven't gotten that far yet - I purchased the Sony DVP 9000ES and am finding that it does both pretty well. I am happy for now :-)
For me, I started with the
1. main speakers
2. main amp
3. DVD/CD player
4. preamp processor ( I am waiting for this piece now).
cheers,
aj