Array in a array

Hey everybody !
Actually, i have a problem :

I am creating a new wordpress theme,
with a great theme_options,
and i want to add a choice for google_font at
different place.
But i don’t want to write everytime i use the list of font.

I am using this function :

$this->settings['content_family'] = array(
			'section' => 'content',
			'title'   => __( 'Font-family' ),
			'desc'    => __( 'Enter the font-family of your content' ),
			'type'    => 'select',
			'std'     => 'None',
			'choices' => array(
		                             'Abel'=>'Abel',
		                             'Abril Fatface'=>'Abril Fatface',
		                             'Aclonica'=>'Aclonica')
);

I didn’t wrote all the list ( google_font = more than 670 font ),
but you know where I have to put my array !!
Hope you know how to resolve my problem !

Thanks !