This NY Times article sings the praises of storing your tunes in a lossless format on a PC and then using a USB port DAC (digital-audio converter) instead of your computer's sound card to send the signal to an amplifier. This is actually a great way to get rid of CDs even for your main home stereo system (assuming anyone still has these. In Chez Angus, it takes up one whole wall of the living room).
The article mentions Gordon Rankin, the owner and proprietor of Wavelength Audio, one of the main movers in the vacuum tube revival in the USA. Gordon makes a variety of DACs for PCs that incorporate a vacuum tube stage at the output. His products are well designed, great sounding and simply beautiful. His DAC in the article is called "The Brick" and it looks like one, but here is a lovely 2.5 watt stereo amplifier he made:
Kudos to you Gordon