Everything that you NEED is in the box. You can charge just fine with the USB cable. I don't bother with the car charger anymore, my current iPod (and I have owned SEVERAL) lasts for a long time without a charge. I put it on the cradle about every other day to update my podcasts, and I keep it in my jacket pocket otherwise. A case is fine if you are concerned about scratches. I keep my older iPod with video in a fitted case, I keep my iPod Touch in a
Coach wristlet.
I use my older Ipod almost exclusively for podcasts, my favorites are:
MacBreak Weekly
This Week in Tech
Left, Right & Center (KCRW)
Science Friday (NPR)
Wait, Wait, Don't Tell Me (NPR)
It really makes commuting much more tolerable.