Ben Lobaugh (blobaugh)

<ul>
<li>NOTE: Much of this functionality is built-into the user profile now. Be sure to look there before installing this plugin as it may no longer be necessary with your version of WordPress</li>
</ul>
As of version 3.3.1 of WordPress the toolbar is required everywhere when a user is logged in. 
This behavior is not always desired, especial during design phases of development. 
There may also be client requirements against having the toolbar show on the front. 
With this plugin you will be able to turn on/off the toolbar per user via the profile page *.
<ul>
<li>This functionality still in development. Currently it will remove the frontend toolbar only.</li>
</ul>

Remove Toolbar

Remove the new toolbar on a per user basis for both the front-end and back-end

netdesignr

This super light weight plugin helps WordPress users hide the admin toolbar completely or partially within seconds.
The plugin comes with three options: 
1. Hide from all 
2. Hide from all except Administrators 
3. Hide from Administrators except other users
Major features in RA Toolbar include:
<ul>
<li>Show/Hide admin toolbar</li>
</ul>

Remove Admin Toolbar


Great for those sites that have users logging into the site, but they don't need the admin bar as everything is done via the menus


Great plugin if you don't want WP bar across the top

Remove Admin Toolbar helps you hide the admin toolbar completely or partially within seconds.

Remove Toolbar vs Remove Admin Toolbar