Formatting is an issue for some folks. Some people think standard mp3 sounds lossy so they insist on high bitrate content, if not lossless. The fussier your ears are, the fewer songs you can fit in there.
Matthew, how many gigs do you have to pay with? I lost hope of ever being a completist when my library outgrew all my iPods long ago. And how much music can you go through? Seems like I'd be hard pressed to hear every song in my shuffle in one day, and that's only one gig. I load it up often with the stuff that's in heavy rotation in my brain, and that takes only a few seconds for 200 songs or so. Other than that, If I want to be complete, I'm waiting for the 360 gig iPod to come out.
