Put most of that money away and forget iPods. Sorry to say it but you havn't got enough to compete with anyone on eBay for example, if that is what you wanted to do.
You have $40,000 which is a great sum to start out with, but please don't spend it on that. You don't need too spend anywhere near that.
Thank God when I started out I didn't have that sort of money. I would of lost all of it and then some!
Stick around here for a while and once you have learnt a bit come back to me, I could think of 101 better things to do with it!
No rush at all, I'm sure you will see a couple of the other senior members saying the same thing...
Good Luck and Welcome to Salehoooo!