Michael

In this plugin you can set an individual title and description for each page and post and they will placed in the header of the page.
Additionally the uft-8 charset is set.

mst_meta

Plugin, which sets meta-title and meta-description like you give it for post or page.

makong

This SEO plugin for WordPress allows you to create fully customizable:
<ul>
<li>
SEO Title
</li>
<li>
SEO Decription
</li>
<li>
SEO Keywords
</li>
</ul>
To create any of SEO meta you will need to add a template to different types of content, as Post/Categories/Taxonomies/Custom Post Types/etc.
So, if you have a few thousands of pages on your wordpress of one kind, let’s say recipes, you can create template for all recipes with just one sentences.
For example: 
Using title template like this: “%TITLE% recipe – How to make %TITLE% easy!” , will get your page titles with recipes look like this: “Potato salad recipe – How to make potato salad easy!” .
As you can see with just a small title template, you can get a greatly SEO optimized titles for thousands of your pages with recipes (or whatever product you have).
GOOD NEWS for those who are struggling with How to do Multilingual SEO for WordPress Sites (using WPML).
This small plug-in is fully compatible with WPML plugin for Multilingual Websites, which is really helpfull as you can create all SEO meta templates for each language in one place.
We’d really appreciate your comments and reviews for TiDeKey SEO WordPress Plugin!
So… 
Use! Enjoy! Review!

Tidekey

TiDeKey - Title + Description + Keywords are the first things you do for OnPage SEO, so why don't you customize your SEO meta template easy?

mst_meta vs Tidekey