Thanks for sharing Will.
I found these very helpfull:
JoomlaPack - Joomla! Extensions Directory
Makes it very easy to create a backup of the entire Joomla site including the database.
Joom!Fish - multilingual content manager - Joomla! Extensions Directory
Management of multilingual content. It is able to translate the joomla interface automatically (database included) and helped me adding 2 other languages for my articles.