How do i change where files are downloaded to when i purchase something on itunes?

I want to change the location that it downloads files to..how do i do that?! thanksss!! i WILL award the 10 pts to the first helpful answer i promise!How do i change where files are downloaded to when i purchase something on itunes?
Hi John. To change the default location, open iTunes; click Edit at the the top of the screen; and select Preferences. Click the Advanced tab at the top of the little pop-up screen. There is a box at the top that lets you change where iTunes will store new media in the future. iTunes won't move what is already in your library to the new location, but will download/import new media to that location.