all of the tools come with Eclipse by default.
What Eclipse version do you use? I had been using "Eclipse IDE for Java Developers", but that version doesn't come with the plugin developer tools. I had to switch to "Eclipse Classic" to get them. *That* version doesn't come with the XML tools, so I had to track those down and install them. :-P
I wrote a very simple plugin quite some time ago, so I'll try to have a look at this.
Excellent - thanks. I have been reading through this article, in case you find it helpful:
http://www.eclipse.org/articles/Article-Launch-Framework/launch.html
