I have to agree, hoops do have to be jumped! My only concern is that like you said, these are not IT people. Giving them that easy access to click on say /dev/hda and click on format using ext3 would be pretty dangerous! I am not convinced that it should be easy for users to be able to work with the drives, that is how some well intentioned people have deleted data or killed their server. Most people that would be using this would be Windowz users and they might not understand the directory structure or the implications of removing / or renaming /home. At least with the CLI, they have to type the command.
<Just Kidding>
Although, this could really bring in some money to fix!
</Just Kidding>