This is good advise, but I'll give you even better advise:
Power all of your digital gear from a Plasmatron 3 from VHAudio.com
While this is a very appealing product, there are number of audiophiles who'd appreciate something else that does a very similar job, but lacks the tubes. :-)
The hard-core "tube lovers" will still be not as impressed (especially when the beautifu tube glow is missing :-)), but a faithfully comparable performance/improvement can actually be achieved with solid state devices as well. :-)
Stay tuned.
Best wishes,
Alex Peychev
APL Hi-Fi