Hiya,
I'm about to do the same thing (well it's on my very long todo list at any rate).
I'm going to use
http://www.exactaudiocopy.de/ rip my CD's to 22050Hz MP3's with the least compression.
Then play them back using AHI (v4.81) using Paula 14bit stereo++ FAST
I'm currently playing back MP3's with a 44k sample rate, that worked well when I was running in VGA mode but now that I've switched to PAL I need to lower the rate.