Here is a list of 6 plugins you can use to create SlideShows and Image Galleries using jQuery. This section has been taken from my eBook 51 Tips, Tricks and Recipes using jQuery and ASP.NET Controls
Cycle - The jQuery Cycle Plugin is a lightweight slideshow plugin. It supports pause-on-hover, auto-stop, auto-fit, before/after callbacks, click triggers and many transition effects.
jOmino - Wrap your html elements in a jQuery collection and animate them with a dominoes in motion effect.
PanelGallery - A simple image gallery where the images are sliced and faded in one piece at a time.
PikaChoose - PikaChoose is a image gallery plugin. You place images into an unordered list structure and let PikaChoose do the rest for you
SlicedImageSlider - This plug-in provides sliced Image Navigation. The plugin loops through the given images and displays each image partitioned into n number of slices. It also has other options like direction in which you want the image to slide
If you have used any other image gallery plug-in, drop in a comment and let others know about it.