Pigi

Use this plugin to Remove WordPress 3.1 Admin Toolbar

Admin Toolbar Remover

Use this plugin to Remove Wordpress 3.1 Admin Toolbar

Using this small plugin you’ll be able to change:
<ul>
<li>Wp-admin </li>
<li>Wp-login</li>
<li>register</li>
</ul>
Logo
You need to insert your custom logo URL and Enable the Function
In the “0.5” Version you will also able to change the Default “Wp-admin” Link (to wordpress.org) with your Own Home Page Link, simply 
setting the custom url from the dropdown menu.
Edit Your Wp-login background
You do not need to do any other change.
<ul>
<li>Insert Your Blog’s Review for Free into <a href="http://blogadvice.org/submit-your-blog/" rel="nofollow ugc">BlogAdvice.org</a>; No registration Needed</li>
</ul>

Login Logo Customization

Change Your Wp-Admin, wp-login Logo, Custom Link And BACKGROUND

Admin Toolbar Remover vs Login Logo Customization