I know the Carbon will work with Macs, but you have to download a plug-in for Macs so it can be recognized via iTunes, but note that music purchased from the iTMS will not work on the Carbon b/c the Carbon doesn't play AAC files, nor AAC w/ DRM protection; only MP3, WMA, WMA DRM, and Audible files will work on it regardless of your computer's OS.
I hate ipods. however, as a present i recieved a brand new Apple imac G5. so, i'm going to be stuck with it for a while. in the meantime, i need an MP3 compatible with macs. my favorite are the rio carbon and the rio Karma.

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