Here's an easy one for you- creating a photo slideshow in Drupal. I like to use views, cck, and some of the views slideshow modules to get it done:
http://www.youtube.com/watch?v=oRQ6KF2JeJo
The second part of backing up your Drupal install is backing up the files. Since mine is on shared hosting, my off-site backups are on another server of mine.
http://www.youtube.com/watch?v=B-gsI5w2WVY
Wondering how to back up your Drupal install? Look no further! This tutorial is split up into two videos- database backups and file backups. Without further adieu, here is the first part: Database Backups:
http://www.youtube.com/watch?v=ZmAf8mvOVps