RSS feeds and wordpress?

As you develop WP theme, I would mention that you need to enable automatic-feed-links by adding following function call to your functions.php file:

add_theme_support( 'automatic-feed-links' );

After it RSS links fill be added automatically to head of your site. The best practice is to add this call in function for after_setup_theme hook handling:

function my_theme_setup() {
    add_theme_support( 'automatic-feed-links' );
}
add_action( 'after_setup_theme', 'my_theme_setup' );