we use one of those cassette adapters in our vehicle with our Iriver FP750 player.

(advantages over Ipod = builtin fm tuner, recorder can be set for the builtin mic, or use a stereo line-in (up to 44khz so the quality is good), Ive used it to record from lps, tapes etc, and convert it to mp3 which apple doesnt let you do as far as I know) the iriveruses regular AA batteries (I just use rechargables), apple may have solved the battery problems but as far as I know, after a couple of years when the rechargable battery wears out you have to send it in for replacement.)

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