I think I would skip the outboard DAC and pay to have the unit modded (~$500, or so). I bet the 9000es would sound awesome modified - if you are willing to void your sony ES warranty. I would. Then you'd have killer SACD, CD, and DVD playback in one box, for less money, and only one set of analog interconnects.
Sony DVP- S9000es
Getting ready to purchase but before I did was wondering if I could get some opinions or input from current owners or those who have heard this unit. I am buying primarily for use as redbook cd player, will I need outboard dac? How is the audio quality with SACD? I am about 70/30 audio to video but would like one player for both, I realize I will give up some audio quality but I do not have to have world class Wadia, Krell, etc. audio but would like to get close to that quality if possible. Thanks for your help and advice.