is_front_page not working

I am using a static site and I am trying to use is_front_page so that only styles/scripts that are needed on the home page get included there, however it’s not working; it’s not including them even though I am on the front page.

Here is my code from my themes functions.php file..

/* Load style files on the 'wp_enqueue_scripts' action hook. */
add_action( 'wp_enqueue_scripts', 'mmw_new_load_styles' );

/* Load script files on the 'wp_enqueue_scripts' action hook. */
add_action( 'wp_enqueue_scripts', 'mmw_new_load_scripts' );

function mmw_new_load_styles() {

    wp_enqueue_style( 'mmw-reset', get_template_directory_uri() . '/reset.css' );
    wp_enqueue_style( 'mmw-style', get_bloginfo('stylesheet_url'), array('mmw-reset') );

    if (is_front_page()) {
        wp_enqueue_style( 'mmw-rhino', get_template_directory_uri() . '/rhinoslider-1.05.css', array('mmw-reset','mmw-style') );
    }

    wp_enqueue_style( 'mmw-ie8', get_template_directory_uri() . '/ie8.css', array('mmw-reset','mmw-style') );
    wp_enqueue_style( 'mmw-ie7', get_template_directory_uri() . '/ie7.css', array('mmw-reset','mmw-style','mmw-ie8') );

    // Apply IE conditionals
    $GLOBALS['wp_styles']->add_data( 'mmw-ie8', 'conditional', 'lte IE 8' );
    $GLOBALS['wp_styles']->add_data( 'mmw-ie7', 'conditional', 'lte IE 7' );

}

function mmw_new_load_scripts() {

    wp_enqueue_script('jquery');

    if (is_front_page()) {
        wp_enqueue_script('rhino', get_template_directory_uri() . '/js/rhinoslider-1.05.min.js', array('jquery'));
        wp_enqueue_script('rhino-mw', get_template_directory_uri() . '/js/mousewheel.js', array('jquery','rhino'));
        wp_enqueue_script('rhino-easing', get_template_directory_uri() . '/js/easing.js', array('jquery','rhino','rhino-mw'));
    }

    wp_enqueue_script('scripts', get_template_directory_uri() . '/js/scripts.js', array('jquery'));

}

I know this conditional tag can’t be used until the posts_selection hook has been fired, but since it’s been hooked to the wp_enqueue_scripts hook which fires after I don’t see why I am getting problems!?