PCGen java based d20 character generator

This software is great. Not all the resources are complete, but as long as you have the DnD books you should get along just fine. http://pcgen.sourceforge.net/

There is one snag that I've run into a few times. Two of the computers I've used this software on I get an error when I try to print or export a character sheet to PDF. The problem is not obvious, but it has to do with the version of Java you happened to be using. As of Feb 23, 2005, PCGen will not export properly in version Java 1.5. If you run into this, get Java version 1.4.x, and things will perk right up.

Downloading this version of Java from Sun was difficult. It kept wanting me to get the latest version 1.5. However, here is the link to the download page. http://java.sun.com/j2se/1.4.2/download.html

There are lots of downloads on the page. You should only need the JRE if you are a regular user.