Magic Button is a very friendly system for creating Web-page Java-based buttons, even if you have no programming knowledge.
It is easy to use its tabs to pick colors, text, background images, sounds, and more for the button's up, mouse-over, and clicked behavior, and designate a URL and frame for it.
A .wav to .au sound conversion utility is even included.
Buttons are sizable and can include a tiled background image or even be transparent .gif files for irregular button sizes.
The system can create the code and interactively preview the button(s) in your browser, then you can paste the finalized code into your project.
Magic Button is flexible and easy to use, and can produce highly professional results.