This iPod would be a successor to my 2nd Gen white 20G model. My needs are fairly basic, or at least my usage has been. I would like something that I can use in the gym, would probably fill with about 2 G of music. I don't want to spend the extra $50 for the 8 G model unless I have to. Have those of you that upgraded to an iPod model with graphics/color screen found yourselves uploading a lot more content (particularly photos, video, etc.)? If I am going to discover a whole new memory-hogging world of content, then better to fork over the money now rather than upgrade again. Also, any pointers on where to buy a new one cheap appreciated. Thanks!