I would highly recommend that you go with the most simple setup possible to get great results. In my opinion, that would by a Mac Mini or iBook using Apple Lossless via iTunes and the best USB DAC from either Larry Moore at Ultra-Fi or Gordon Rankin at Wavelength Audio.
For a wealth of information about USB DACs and computer audio, check out Gordon's USBDACS.com pages.
Enjoy,
TIC
For a wealth of information about USB DACs and computer audio, check out Gordon's USBDACS.com pages.
Enjoy,
TIC