Yammy,
My guess is that you are going to have a very good and simple system. I've used 3 different CD players w/built-in volume control (Theta Miles, Cary CD-308, Resolution Audio Opus 21) and I've had outstanding results with all three (the RA Opus was easily the best!).
For me, in my room, with my choice of music, I do not miss any additional dynamics that a Pre-amp may add to the music. And, the added transparency of the the CD-direct setup works great for me.
Enjoy it!!!
TIC