Google Chrome is highly regarded for its extensions and plugins, which allow it to be customized to the needs of the browser. Chrome offers many extensions for anything a person needs; if you find yourself wanting more from Chrome in terms of video plugins, here are a few of my favorites.

Easy YouTube Video Downloader
With one easy click, this add-on allows the downloading of YouTube videos in FLV, MP3, 3GP, MP4 and even in 720p and 1080p HD resolution.

iTube
Adds several features to YouTube. Functionality for using space as pause, options for those with very small monitors that allow the video to fit better, auto replay, and automatically setting videos to HD.

Illimitux
If you watch videos from several different streaming sites this is for you. It bypasses Megavideos daily video limit as well as other similar sites. It also adds divx/avi playback functionality. In addition, users with this extension can host and share content.

Turn Off the Lights
A neat plugin that allows a website to be dimmed so as to watch a video like in theaters. Simply press T to dim or un-dim the screen. Supports not just video but some imaging sites such as Picasa. Very customizable.