Quick question for all you technology savy types. I am looking for a portable devise where I can download audio podcasts and books. What is the easyist to operate and most dependable IPOD or MP3 Player (And if you could explain the difference between IPOD and MP3..that would be great) I should buy and what is the minimum amount of memory I should have. I am not really interested in this as a music player...(nor any kind of porn)....just books and lectures. Thanks.