OzTheGreat

Adds a multiple select box to every non-admin user profile that allows admins to 
select which languages that user can see / edit in the wp-admin.
Languages that a user cannot see are hidden. If they try to switch surreptitiously 
it will throw an error message.
This plugin REQUIRES WPML and is useless without it.

WPML Editor Languages

Allows admins to restrict users to specific languages in the WordPress admin

Brian Fegter

There are plenty of auto translate plugins, but they leave the content rigid with grammatical errors. For those needing a solution to translate a WordPress site manually into unlimited languages or versions, WP-Translate is for you. Using shortcodes, template tags, and a widget, you can easily create a site that will reflect appropriate content, images, links, and text for each language. You can use simple shortcodes in your content, or customize your templates to change your entire site. The beautiful thing is that you don’t need to create multiple posts or pages for each language. All content is filtered off one post/page.
<h3>Changes</h3>
<ul>
<li>Translate no longer uses commas as delimiters for the parameters, use the | pipe symbol instead. This caused problems when trying to translate paragraphs with commas.</li>
<li>Nested shortcodes. You can now add contact forms, photo galleries and whatever other plugin that uses shortcodes into the [translate] tags.</li>
</ul>

Translate

There are plenty of auto translate plugins, but they leave the content rigid with grammatical errors.  For those needing a solution to translate a Wor …

WPML Editor Languages vs Translate