Ok, add this to your theme's functions.php:
register_sidebar( array (
'name' => 'Sidebar 2',
'id' => 'sidebar-2',
'before_widget' => '<li id="%1$s" class="widget-container %2$s">',
'after_widget' => "</li>",
'before_title' => '<h3 class="widget-title">',
'after_title' => '</h3>',
) );
Then find the place in your page.php where it says something like this:
<?php if ( !function_exists('dynamic_sidebar')
|| !dynamic_sidebar() ) : ?>
and replace it with this:
<?php if ( is_page(your_page_name) ) { get_sidebar( 'sidebar-2' );
} else { get_sidebar(); } ?>