Have you thought about perhaps a little program that accepts output from foobar and then let xxhighend decode over network? this would be the optimal thing for those with a dedicated music machine, couse once you've mastered foobar there is really no going back and i figure it will take some 2-3 years before xxhighend gets the same usability.
I understand and respect that sound quality always comes first but with such a thing we would have the best of two worlds
best regards martin