Alternatives to the ClickToPlugin Safari extension for Chrome users
Chrome comes with Click to Play built-in. Head over to chrome://chrome/settings/content#click, & enable Click to Play
For HTML5 video replacement, there's a html5ify but it supports limited sites.
That is one thing chrome is missing compared to Safari's ClickToPlugin. That thing is awesome. I wish someone could develop an extension for Chrome: Here is some helpful doc's http://hoyois.github.com/safariextensions/clicktoplugin/killers.xhtml