NDDT facilitates in the creation of new modules and themes. To invoke the wizard, simply right click on a folder in your Drupal directory tree (ie: sites/all/module) and select new->other. That will bring up the new item window:
Under categories select PHP and then in the File Types either select Drupal Module or Drupal Theme.
Module and theme creation are very similar. Here is the wizard window for creating a new Drupal module:
Simple give your new item a name. The wizard will translate that name into a machine friendly name and display the files that will be generated. Once you are happy with the name, click Finish and the new folder and files will be created, all with the proper names.
It should be noted that this creation process works off a templating system similar to the API Tree and therefor can be customized. See the customization section for more details.