DramaticZoom is a jQuery plugin that allows you to zoom on a specific part of an image when a certain event happens on the page. What makes it interesting is that you can use non-linear interpolators to customize how the zoom happens.
Here’s a link to the demo.
You can now buy it on Codecanyon.net for $6. If more than 10 people buy it, I’ll probably make a WordPress plugin. I’m thinking WordPress plugins sell better than jQuery ones since you wouldn’t need to code to set it up.
My next CodeCanyon project should be coming soon… I have a ton of ideas for more projects.