Rather than editing and hard coding into your templates, you should use a plugin such as http://yoast.com/wordpress/seo/ which will give you the option to edit meta tags for each of your pages including the home page.
Rather than editing and hard coding into your templates, you should use a plugin such as http://yoast.com/wordpress/seo/ which will give you the option to edit meta tags for each of your pages including the home page.