OK, So my parents want to buy me an iPod for Christmas. I've never had more than a Shuffle but I've outgrown it so I've reluctantly agreed. I had my heart set on the black nano but my mom wants to buy the 30GB (it's a better deal). What are the pros/cons that I might not be seeing here? What I'm using this for is to/from work and in the car. The only thing I really aren't sure that I'd like about the 30GB is its size and ability to fit in my pocket so I can walk around the city with it like I do my shuffle. Any takers?