SuperKaramba ?
http://netdragon.sourceforge.net/ssuperkaramba.html
What is SuperKaramba?
SuperKaramba is, in simple terms, a tool that allows you to easily
create interactive eye-candy on your KDE desktop.
KDE Plasma support
Package: plasma-scriptengine-superkaramba
Description: SuperKaramba theme support for the Plasma Workspaces
This package provides SuperKaramba scriptengine for Plasma. It brings
support for the SuperKaramba interactive desktop applets, called
"themes", to the Plasma desktop. This package is part of the KDE
SC utilities module.
KDE-Look
http://kde-look.org/content/show.php/?content=91918
Description: This widget will display current ATI screen card fan
speed and temperature. It will also allow the modification of the fan
speed in 5% increments.
At here
Downloading the widget - unpacking it - starting the Karamba: Alt+F2 karamba.
Adding the local theme...
Seems to work at here.