Move iTunes media location

1. Close iTunes
   
2. Copy the iTunes folder from C:\Users\ataylor\Music\[ITUNES] to the new folder Example: D:\Music
3. If you are using Windows, hold down the Shift key and from the Start menu and choose All Programs > iTunes > iTunes.
4. If you are using the Mac, open iTunes and immediately hold down the Option key.
5. You should see one of the following screens:

Some of this article was found here:
http://support.apple.com/kb/HT1589