.fay

This plugin allows you to add a sliding login/dashboard panel to any WordPress Theme. This awesome panel is based on http://web-kreation.com/index.php/tutorials/nice-clean-sliding-login-panel-built-with-jquery/
Instead of modifying directly theme files, just install this plugin so you can preserve you panel when switching between themes (or after themes updates).
You can also specify your own HTML content to put in the panel… Yes! this is awesome!

WP Sliding Login/Dashboard Panel

Excellent

Automatically add a sliding login/dashboard (or whatever HTML content) to your Wordpress Theme

donimedia

WordPress extension ( plugin ) which allows to display , on your website , 
a customizable Flash set of sliding menus , whose submenus are animated by a “spinning back” movement :
<a href="http://www.donimedia-servicetique.net/newsletters" title="Be well informed about our latest creations or updates" rel="nofollow ugc">Newsletter</a> | 
<a href="http://www.donimedia-servicetique.net/support-forum-donimedia-servicetique-cms-extensions" title="Click here to receive assistance or report a problem with this plugin" rel="nofollow ugc">Forum</a> | <a href="http://wp-plugins.donimedia-servicetique.net/" rel="nofollow ugc">Other plugins demos</a>
<ul>
<li><a href="http://wp-plugins.donimedia-servicetique.net/?p=494" rel="nofollow ugc">Demo 1</a> </li>
<li><a href="http://wp-plugins.donimedia-servicetique.net/?p=496" rel="nofollow ugc">Demo 2</a> </li>
<li><a href="http://wp-plugins.donimedia-servicetique.net/?p=498" rel="nofollow ugc">Demo 3</a> </li>
<li><a href="http://wp-plugins.donimedia-servicetique.net/?p=500" rel="nofollow ugc">Demo 4</a> </li>
<li>
<a href="http://wp-plugins.donimedia-servicetique.net/?p=502" rel="nofollow ugc">Demo 5</a>
</li>
<li>
Author plugin : David DONISA
</li>
<li>Author E-mail : donimedia-servicetique@orange.fr</li>
<li>Plugin license type : GPL v2.0</li>
</ul>

WP SM Half Loop Sliding Menu

Flash set of sliding menus , whose submenus are animated by a "spinning back" movement .

WP Sliding Login/Dashboard Panel vs WP SM Half Loop Sliding Menu