All credit to Brian Kent (http://www.aenigmafonts.com) who’s not only an excellent font designer but is also committed to the ideals of open source software and has made 465 of his font creations available to Ubuntu users. To install the fonts, you’ll need to add a new software repository:
click System → Administration → Software Sources, then the Third-Party Software tab, and click the Add button.
Then type the following into the dialog box that appears:
deb http://ppa.launchpad.net/corenominal/ubuntu hardy main
Click the Add Sources button, then the Close button, and, when prompted, agree to reload the package lists.
Then use Synaptic to search for and install the ttf-aenigma package.
Once installed the fonts will be available for use straight away in all applications.