Mac Dock jQuery Plugins for your Menus

Although support for this plugin has stopped, it is still a very solid plugin that works very smoothly. It uses the Fisheye component and is pretty straight forward to setup.
For a quick demo, click here.
Works on IE 6, IE 7, Opera 9, Firefox 2, and Safari 2 (although there are some minor rendering issues with Safari).
Click here to get the plug-in.

jqDock is pretty advanced – Lots of configuration settings you can customize and also provides some excellent examples with the CSS and Javascript for each.
For a quick demo, click here.
Works on IE (6 and later), Firefox, Opera, Safari and Chrome
Click here to get the plug-in.

This plugin will partially work even without Javascript enabled. Of course, zooming in and out won’t work but at least the icon will still appear larger on rollover, thanks to CSS. Unfortunately, it works on less browsers than the others and the site offers less documentation.
For a quick demo, click here.
Works on Firefox 3, Chrome, IE8, Opera and Safari.
Click here to get the plug-in.