This is my first one, so don't laugh if you think its stupid.

$_='abcdefghijklmnopqrstuvwxyz'=>tr`zlbwcvduaxyetfsrhgmjipoqnk`
ruesktcjr__aah_on_htrelpe`=>s`_` `g=>s`\b([^A-Z])`\u$1`g=>print;
[download]

-zdog (Zenon Zabinski)