REALmac software is releasing Button Builder extreme 3, a button-building tool built exclusively for Mac OS X.
Built with the REALbasic development environment from Real Software, it not only aids in creating buttons, it can also be used in creating Web pages, complete with three state rollover effects (normal, over and down). You can do it without any knowledge of complex JavaScript or Web editing applications, according to Daniel Counsell of REALmac Software.
Button Builder comes with over 100 buttons in 10 different sizes for US$20. You can download it now.