Well, first of all, bollocks. Itunes is wrong. I can not download anything from the app store as the message that iTunes does not have write access to the iTunes, or a child thereof, directory. These are in my user folder so running itunes with my user account should be enough... But just to be thorough I ran #chown -R (with appropriate options) to the iTunes directory. This did not solve it. Then I ran #sudo chown -R [ops] and still no luck. Then I used chmod to add '+w' to the directory, then chagned toe mode to 775, and then 777....all with no success. Resinstalled iTunes...still getting the error. Any thoughts?