inconver

You can add new sidebars in the admin panel and edit them.
You can add new types of widgets and edit them. 
Also, you can add custom fields for new types of widgets. 
And you can create a unique template for each new type of widget.
Video tutorial: <a href="http://inconver.com/wui/" rel="nofollow ugc">http://inconver.com/wui/</a>

WUI: Widgets User Interface

Plugin for creating new sidebars for the site and new types of widgets with the custom fields

Kirsty Burgoine

Features Include: 
The ability to add video directly in to a page, post or any of your own custom post types using the video URL (not the embed code) and a Short code.
Fully responsive so will fill the width of the containing area and scale depending on screen size. No need to set a width and height, just set the width of the div your content sits in.
Support for custom post types. Automatically adds your custom post types to the settings screen so that you can choose which you would like to be able to add video to.
Multi instance responsive Widget to allow you to add videos to multiple widget ready areas.
<h4>Requirements</h4>
<ul>
<li>WordPress 3.0 + with WordPress Widgets</li>
</ul>

Responsive Video

This widget will display a Responsive YouTube or Vimeo video in pages / posts and sidebars.

WUI: Widgets User Interface vs Responsive Video