Okay, so, I don't have an iPod, and it's the coolest thing for the past 3 years. I'm 29, and I'm debating on purchasing an iPod. I think of XM Radio Vs' iPod??? Though I don't really listen to music due to lack of time, I still like to listen to a variety of singers from disticnt generes. Bottom line, I would like to purchase an iPod to be able to listen to Audio books and stuff like Anthony Robbins. Is it possible???? I read an article once where it claims lots of employers are getting into the iPod trend for training purposes. Lets just say music will be a leisure, but the real necesity is learning. What size is recommended for this purpose. Should I get a cool media/video screen with it? I don't know, I'm comfused. Can Audio books even be downloaded into the iPod??? Ur best advice is greatly appreciated.

P.S. Do u recommend I purchase an iPod at a pawnshop?? What should I look for?