I just purchased a season pass for Dr Horrible from iTunes, using a machine other than my desktop.
iTunes prompted me with this dialog box:
Wow, someone should really write a set of interface guidelines for stuff like this.
Here’s a tip – if the bulk of the dialog box has to explain what will happen when the user clicks each of the buttons, you probably haven’t done a good job. What it should be, and what 99% of other Apple applications would do, is “Would you like to make this computer automatically download all of your iTunes Season Passes?” with a button saying “Yes” and a button saying “No.”