This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
In addition to what Ulf said, you can also get some jazzy effects by using threading. Having mouse listeners (e.g. display menus on mouse over instead of mouse click) might also help you crank up the effects.