Hi Mark, thanks for posting your impressions - what a great read, particularly as someone who is expecting his very own kdac very soon!
Like Nathan, I will be using a Wadia transport like Steven's - in fact it was crazikid's one, which is I2S output only. I bought it from him months ago but haven't even taken it out of the box yet!
I also bought his very special double crown chip, so there should be some good times ahead!
- r.