Thank you all, your wishes and kind words are much appreciated.
Not much of true value, as in, irreplaceable stuff, was damaged, but the work is likely going to take a couple of months. The computers here are all working, but the environment is far from conducive to doing work, and a lot still has to be moved and/or fixed.
The biggest problem currently is finding where everything is, having had to move everything out of the basement and stack up in the living room wherever there was some space available .
Some of our neighbours are much harder hit, however. Some have water both in their bedrooms (upper story) as in their basements. It was quite the torrent coming down, and sewage drains could absolutely not keep up with the water. Fortunately we are not too close to the river itself over here, so it was just the street that turned into a shallow river (40 - 50 cm deep), enough to flood most garages, cellars and basements around. With very few exceptions the water reached right to the walls of houses everywhere.
I feel really sorry for the people in some other places in the South over here, and of course those in France and Germany, where flooding was much, much worse.
Warm regards, Wim