Installing Eclipse typically consists of downloading the latest distribution and unzipping it to a chosen location. Maybe then you can add a shortcut to its executable from a convenient place.
There are a few Eclipse packages based on the core Eclipse functionality and bundled with a selection of plugins that are mostly useful for a target application. For example, you'll find distributions for C/C++, PHP, or Java EE developers.
I'm working with Helios for Java EE. It comes with a combination of plugins that is suitable for a good range of Java development, and as all packages, it can be extended with a variety of plugins for additional features.
The two additional plugins that we're using in this appendix are: