batmanfan - there are several discussions in the digital group of threads that could be helpful; my take is if you have more than one source (and I bet you do), DAC design continues to change and evolve, so if you want to maintain the ability to change/upgrade the DAC, you'd be better off with separates. That being said, there are fans of some boxes that do both, but this does lead to some built-in constraints down the road. The other question is the streaming part - again, one unit or a combined DAC/streamer. With all things audio, cost becomes the biggest constraint.