R. Dale Asberry (of Judy Jini.org project fame) has kicked off the Installer DeLux project chartered to create an installation toolkit that you can easily customize and extend thanks to XUL and Ant.

Dale writes:

The documentation is sparse, I've not created an Ant build script, and it's fairly incomplete... but if you are interested, you can grab the sources off of CVS. The project relies on AspectJ too so if you don't have Eclipse, you may want to wait until I have a proper release built.

Full story @ https://install-delux.dev.java.net