Great sound for the price, in the Canadian version you get 16GB for under $100. $120 before sale. Battery life is stable, but closer to 40 than 50 hrs. It's new, so I'll add more as it get's a wee bit older. It comes with the gasket headphones.
I haven't found any yet, if you only want it for music. It come cliped, isn't as small as a nano, but I have one of those also, switching screens is difficult while running. I love it, give me 2 months and I'll add to this.
It's got all the features you want in a music player, not a media surfer. I don't usually run on the beach checking my email. Maybe that's just me.
I've never done one of these, but this is worth it, try it.