Zune output vs. CD output

Hey everyone.

I have been putting together a small but nice little bookshelf system in my living room consisting of a pair of paradigm atom v5s, NAD 325bee integrated, MC Z2 speaker wire, M1000i rca interconnects, and I just picked up a 1m audioquest copperhead 1/8" to RCA interconnect.

I was about to invest in a NAD c542 CD player... then I was laying in bed and thought... wait, why? 99% of my music is on MP3, M4P, or lossless FLAC. I hardly have any CDs... and those that I do have were just burned from MP3s.

So I idealized buying a new Zune instead. With this, I can dock it next to my stereo system connected with the copperhead cable. Any new music I get I can just wi-fi it across the house and have it ready to play on the Zune. That sounds much more fitting for me than a CD player.

So, ok, here is the dillema... I want excellent audio. Lets say I had a 1st generation rip into a lossless FLAC or even a 320 constant bit rate MP3 and sent it over to my docked Zune for playback. How would this sound in comparison to actually playing the CD back on a dedicated CD player (most likely the NAD C542)?

BTW, with this test I am assuming a near-perfect CD rip from my Pioneer DVD-RW drive. It is a quality drive... so I am assuming that wouldn't be an issue. Oh ya, and the CD player would be hooked up via MC M1000i cable.

K, I appreciate any feedback. Thanks audiophiles.