(If you are really feeling brave check out http://jquerymobile.com/)
Copy/Paste then Hack Away
Holy Tools & Plugins Batman!
Once you've mastered the ways of JQuery you can then move on to JQuery plugins. Animated drop downs, overlays, slideshows, interactive forms... you name it. There are tons of JQuery tools and plugins out there to put into your JS utility belt. Here are some for you to get started:
Thinking outside of the Flash Embed
So who said you couldn't do cool interactive sites in html. Get your brains going and HTML moving. Use this parallax gallery demo to create your own dynamic, layered HTML effects
What about video?