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.

johnh10

No need to search YouTube and copy/paste videos into WordPress. Video Blogster 
Lite will automatically fetch the title, description, thumbnail, and 
statistics for each video in your keyphrase search. Integrates seamlessly with 
WP-PostRatings and WP-PostViews.

Video Blogster Lite

Create a video blog in minutes! This plugin searches YouTube for content and automatically creates posts from the results.

Responsive Video vs Video Blogster Lite