Marcus (aka @msykes)

This plugin removes the admin bar completely from the public and admin areas of the website. Can be used either as a normal or MU plugin.
Upon activation/installation this works immediately. Nothing fancy, the admin bar is just not loaded anymore.
<h4>BuddyPress 1.1 Onwards</h4>
You can also add the following to your wp-config.php file and then you don’t need this plugin ( sniff ;( ) :
<pre><code>define( 'BP_DISABLE_ADMIN_BAR', false );
</code></pre>

Remove BuddyPress AdminBar

This plugin removes the admin bar completely from the public and admin areas of the…

codebunny

This plugin allows admin to add WordPress and custom menus to admin bar, change admin bar and menu background and text styles, enable toggle / auto hide admin bar modes, add custom logo to admin bar and much more.
Plugin features,
<ul>
<li>Change the “Howdy” greeting message.</li>
<li>Add new custom logo to admin bar.</li>
<li>Hide Links : WordPress, BuddyPress, BuddyPress Links, SEO By Yoast, bbPress, W3 Total cache, rtMedia, Events Manager links in admin bar and main menu. (My account menu).</li>
<li>Hide admin bar according to the user roles. Compatible with s2member framework.</li>
<li>Move admin bar to bottom.</li>
<li>Toggle / Auto hide admin bar.</li>
<li>Change admin bar and menu background colors using with or without CSS gradient patterns or/and background images. Ten (10) gradient patterns are available.</li>
<li>Add CSS shadows to texts, menus and menu items. Twelve (12) menu shadows and Twenty (20) menu item shadows are available.</li>
<li>Add WordPress menus to admin bar with menu icons.</li>
<li>Add custom menus (depth 2) to admin bar with menu icons.</li>
<li>Apply custom CSS codes to admin bar.</li>
</ul>
For more details go to demo video : https://www.youtube.com/watch?v=fHm67BUmh5M&hd=1

WordPress All In One Admin Bar

This plugin allows admin to customize the admin bar and much more.

Remove BuddyPress AdminBar vs WordPress All In One Admin Bar