This is a great article about the yahoo ui tools. I mention it mainly because they have a nice scrolling widget a lot like what I put together as an example of the things you can do with script.aculo.us (see Smooth Scrolling Image List).
A link to the demo: Sliding demo
The entire article: 15 things you can do with yahoo ui
[tags]yahoo ui, script.aculo.us, javascript[/tags]