ZFS is solid. There were rumors that Apple OSX 10.5 would support it as default. Apple has a developer preview for this, so I can assume it is coming in the future. Maybe 10.6.
Obviously WAV is just the Raw data off the CD, but the down side there is tagging. That's the main reason I chose Apple Lossless. Keep in mind lossless codecs are lossless, and can be converted to any future format you wish. You can do some google searches for debates on the topic. Also, keep in mind a Mac uses AIFF, which is still the "raw" data, just like WAV. Think of AIFF as Apple's WAV.
One could argue it's "still digital" and it's not the pure signal, but I don't want to get into that whole analog/digital debate. CD's ARE only sampled at 44.1khz
You COULD always just play those records, ONCE, on a high end transport, through a super-high end DAC....
Have fun