If you are a Ubuntu (Kubuntu/Ubuntu/Xubuntu) fan then you'll love EveInstaller. As said before, this little tool basically automates almost everything when it comes to installing well known widely used apps in Ubuntu 11.04.
*. Install A lot of application docks such as Cairo dock, Gnome-do, etc.
*. Grub boot-loader configuration GUI.
*. Codecs packs (Ubuntu/Kubuntu/Xubuntu extras).
*. Adobe Flash, Adobe Air.
*. Partition managers....
Seriously guys... it comes with a list of apps that would take me few hours to complete :). As you can see, the GUI is pretty straightforward and things are categorized by default (graphics/utilities, etc), so it's pretty easy to browse and find the ones that you want.
If you want to give EveInstaller a try, then get the ".deb" file from here (works on 11.04/10.10 and 10.4). Just double click on it and follow the instructions, and for a change, let me try -> Hasta la vista.