Eclipse plugins

Groovy-Eclipse http://dist.springsource.org/release/GRECLIPSE/e4.2/

Promoter plugin http://update.mousefeed.com/

WireframeSketcher is a rapid wireframing tool that helps quickly create wireframes, mockups and prototypes for desktop, web and mobile applications. It comes both as a plug-in for any Eclipse IDE and a standalone version.
http://wireframesketcher.com/updates

The tool suite builds useful diagrams to help developers Quickly Understand Code and Document In Seconds.
http://update.architexa.com/4.2/client

YEdit is an Eclipse editor for editing YAML files.
http://dadacoalition.org/yedit

Eclipse Full Screen Plugin (now 1.0.7) for Eclipse 3.4
With this small plugin Eclipse and RCP Programs based on Eclipse can run in full screen mode, so that you can have more space to edit your programs.
http://code.google.com/p/eclipse-fullscreen/