Horinaja is a free slideshow script that comes in two versions: scriptaculous/Prototype or jQuery.
It slides contents inside an unordered list wrapped with a div whose class="horinaja".
The script has support for mouse wheel that only works when the slideshow is hovered which is a nice feature for not locking the scroll-bar of the browser.

It is possible to enable/disable slide numbers & define the seconds between transitions.
Requirements: jQuery or scriptaculous/Prototype
Compatibility: All Major Browsers
jQuery Fancy Gestures is a plugin for enabling mouse gestures on any website.
Using the plugin, you can accept inputs similar to smartphones, create a captcha where users will need to draw a text & more (totally up to your imagination).

The plugin is a port of mouse gesture recognition with ActionScript & uses Walter Zorn’s VectorGraphics library.
Every position (N,W,S,E,NW,SE, etc..) is described with a number & it is possible to create custom gestures by defining the related series of numbers.
Requirements: jQuery, Walter Zorn’s VectorGraphics library
Compatibility: All Major Browsers