[Zope] looking for a poor mans' xdrive.com or ibackup.com

hello and thanks for reading this, i know that zope support webdav. ibackup.com, a commerical company, offers webdav access for a fee. i was wondering if someone had written a zope application that could function as a simple webdav server and a simple user interface to modify it. i am trying to help a school find a free way to use webdav for the teacher's and student while at school and at home. i think that zope should be able to handle this. so any suggestions or advice? thanks, dave