Creating a dynamic sidebar this way?

I need to create a few sidebars that will display depending on what is being displayed (page, post, category, etc.) I’m wondering how this can be accomplished.

if its a single post do this
<?php get_sidebar(‘singlepost.php’); ?>

if its the services page do this
<?php get_sidebar(‘services.php’); ?>

if its the media page do this
<?php get_sidebar(‘media.php’); ?>

etc…etc…