hello, i am in the tech club at my local elementary school. we are thinking about buying iPads for the students to use. i have some questions. are there security things that i can put on the iPads? is there a way to make folders on the network that where each student has their own folder where he or she can save documents or other files? can there be a log-in to get onto the iPads? thanks for any response. we have had windows PCs at the school so iPads are really a new field for me.