I want to buy iPod I am a bit confused between iPod Classic 120 GB and iPod Nano 16 GB. The only advantages I see in iPod Classic are higher capacity and a bigger screen. I want something that would be reliable, which of the two iPods would be more reliable (Hard disk reliability). I am leaning toward iPod Nano as it is flash based and have a feeling that iPod Classic might be more prone to hard drive failure. Anyone here with iPod Nano 16 GB, how is the screen quality and battery life and the accelerometer feature. Please advice.