Having got tired of the numerous requests for un-delete button from my clients, I went looking for a version control system. There appears to be only 1, but fortunately it works perfectly!
The demo site made it crystal clear what I was getting, and a painless install later it was up and running in 1 of my websites. I will have to find the time to install it into each of my sites as it is a huge time saver.
Not only that, but support is fast and friendly.
I am just amazed that this is not yet in the Joomla core.