[memorius]

The latest Eclipse is superb in its java tooling, especially for large projects - great refactoring abilities, class hierarchy visualization, navigation, ant integration, plugins available for Checkstyle and Findbugs, etc. It's also a lot more stable and robust than I had expected for such a large IDE - I've had no real problems with it so far.

A much-underrated feature is the Mylyn task-focused programming system, which reduces information overload and saves you a lot of time repeatedly navigating around hierarchies and files. I've seen nothing comparable in any other editor.

There is also some great integration into bug tracking systems. My projects use Bugzilla, and I almost never need to visit the slow bugzilla web interface or wade through bugmail emails anymore - bug search and details, comment posting and bug change notifications are all right there in the Mylyn task list.

Before switching to Eclipse when the 3.5 release came out, I previously did all my Java work in jEdit, which I still use for other languages; I hate to think how much time I wasted by manually doing the tedious tasks that Eclipse could have automated for me.

I concede that you do need a fast machine, lots of memory and plenty of screen space, but it's well worth it for the time savings on the tasks for which it is suited.