I testet a lot of highlighter plugins and I think yours is the best. Great job!
The only thing missing is MySQL support, so I wrote the translation myself.
Everyone can download it for free from my site: http://ansas-meyer.de/wordpress-en/adding-syntax-fur-mysql-to-wordpress-plugin-crayon-syntax-highlighter/
@akarmenia: feel free to add my language pack for MySQL to your awesome plugin.