How to Change the Default Home Page for the WordPress Dashboard?

Easy enough, decided to just do the redirect option. I used the wp_login action hook. You could also probably use this for redirecting your users to ANY page on your website. You can also check user capabilities from the $user Object passed in as a function parameter if you want to send different user levels to different pages.

/* Redirect the user logging in to a custom admin page. */
function new_dashboard_home($username, $user){
    if(array_key_exists('administrator', $user->caps)){
        wp_redirect(admin_url('admin.php?page=c2c-overview', 'http'), 301);
        exit;
    }
}
add_action('wp_login', 'new_dashboard_home', 10, 2);