KT,

If you can't get MAGIX for your Mac, you can do just as well with a tape player plugged into a little adapter called an iMic, which then plugs into your USB port. You play the taped song while capturing it on the Mac using, for example, Sound Studio, or any other Mac audio recording program.

For cleaning out hisses, pops and such, nothing out there I've seen beats SoundSoap, made for that very purpose.

A