i want to start downloading from itunes but i want to know first if it is like big pond and doesnt use up any of my download usage.
Yeah, of course. It's downloading so it's going to use bandwidth. Are you on a restricted download? Like only 50gigs a month, or something like that?
I wouldn't worry about that. You will go broke long before you break any limits with music and unless you are under that crazy 10 G limit videos should not be a problem. You might want to research before you plunk down your money.