I *heart* my iPod Classic. I got it because I really, really need the large storage capacity, and I couldn't have made a better call. However, I'm now about to join a gym, and I know the flash-based iPods are much more popular because of fear that the constant jarring will cause the HDD to prematurely crash. How valid is this fear? I love having everything on one iPod, but if I have to buy a flash-based iPod just to prevent my baby from dying an early death, I'll do it. It only makes sense. How many people use a Classic at the gym or while jogging?