The Tags plugin, created by Kenrick Drew, allows you to jump to the definition of a specific language object or "tag" using tag index files. The index files are created by the ctags program available for both Windows and UNIX-based systems. You can obtain a robust version of ctags from the Exuberant C Tags project site.

The author of JMonkey, Ashley Williams, describes this new plugin as follows:

The JMonkey plugin is a collection of file system helpers, known as JMonkeys. There are currently two JMonkeys available:

1. Find Class Monkey. This is very similar to the JBuilder browse feature as it allows you to navigate to the class either under the cursor or as specified in a popup.

2. New Class Monkey. This allows you to create new packages and files by typing the name in a popup using a very simple syntax.
Since JMonkey is purely file system based, it isn't as precise as a system that uses a full-on object graph - but it is very fast and flexible and meets 99% of my needs.

Give these new plugins a try and provide some feedback. Thanks to both Ken and Ashley for their contributions.