This is an update on my iDac after getting it back from warranty repair.
First off I agree with all the comments and thanks for sharing. Yeah for a thousand bucks it's a bit disconcerting to have a unit barf out after 2 days, replace with a new one, only to have that one crap out after a week in the same way.
Wanted to report that my iDac has been performing flawlessly since I got it back. Hope this remains the case. As far as the sound goes, that's why I bought it, never heard my iPod or music library on my computer sound this good. Keeping my fingers crossed.