Wordpress Blog- How can I have a different template for different post?

I want to apply different template for few blog entries like product review, sales pitch etc. I don't want to use static page.

Is it possible to have multiple "single.php" file on WP theme


I've seen this option on Semiologic pro theme. It has a cool feature called "sell page" template.

Thanks

 

different templates for all posts??
that's doesn't sound possible...

 

Here you go http://wordpress.org/extend/plugins/post-template/

this plugin allows you to create multiple post templates for wordpress