Build High-End Audio System w/ Hard Drive Storage?

nganju asks: "Hard Drives have finally reached the size where I can rip down 1000 CDs directly to WAV files, and skip the compression step (read: headache) altogether, ensuring that the audio playback is what the original CD author intended. Now the question is, how do I get that WAV data off the computer and into the amplifier with minimal distortion? Are there D/A PCI cards comparable to high-end CD players? Or is the best solution some direct digital output card (SPDIF) and a standalone D/A converter component? Specific model names would be greatly appreciated."