Conditional in Wordpress child theme

My site is at http://www.aurorahealthaccess.org -- it's built on a child theme for Twenty Ten. I've got some conditions set for how div#branding area is served up, and it's working properly on all traditional pages but not on any single/singular/post/blog pages. Basically I want those post pages to behave just like any other page (except is_front_page because its div#content is handled differently). My template code is below.

I think it's as easy as adding another condition to the code in line 5 but I can't seem to figure it out. Any help would be much appreciated. Thanks in advance.

<?php
get_header(); ?>

        <div id="container">
			<?php if ( !is_front_page() ) { ?>
                <div id="branding" role="banner">
                    <?php $heading_tag = ( is_home() || is_front_page() ) ? 'h1' : 'div'; ?>
                    <<?php echo $heading_tag; ?> id="site-title">
                        <span>
                            <a href="<?php echo home_url( '/' ); ?>" title="<?php echo esc_attr( get_bloginfo( 'name', 'display' ) ); ?>" rel="home"><?php bloginfo( 'name' ); ?></a>
                        </span>
                    </<?php echo $heading_tag; ?>>
                    <div id="site-description"><?php bloginfo( 'description' ); ?></div>
    
                    <?php
                        // Check if this is a post or page, if it has a thumbnail, and if it's a big one
                        if ( is_singular() &&
                                has_post_thumbnail( $post->ID ) &&
                                ( /* $src, $width, $height */ $image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'post-thumbnail' ) ) &&
                                $image[1] >= HEADER_IMAGE_WIDTH ) :
                            // Houston, we have a new header image!
                            echo get_the_post_thumbnail( $post->ID, 'post-thumbnail' );
                        else : ?>
                            <img src="<?php header_image(); ?>" width="<?php echo HEADER_IMAGE_WIDTH; ?>" height="<?php echo HEADER_IMAGE_HEIGHT; ?>" alt="" />
                        <?php endif; ?>
                </div><!-- #branding -->
			<?php } ?>

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