hi everyone. i'm currently contemplating which ipod to get: photo 40 or photo 30. these are the differences between the two that i am aware of: - obviously, the capacity - with the 40 you get more accessories in the box 1. does anyone know if there's much of a size difference ? 2. are there any functions that the newer 30 has that the 40 doesn't? e.g. can you create and save on the go playlists with the 40? 3. what is the price difference?