Besides the development of Rinzo I'm also developing a couple of other Eclipse plugins that could be of interest even if they are not directly related to Rinzo:
GrepClipse is an easy way to filter an Eclipse console's content through a regular expression as you'll do it on a *nix console through the commands grep -n <regexpr> <currentConsoleContent> followed by tail -nf <newConsoleContent> | grep <regexpr> helping the analysis of logs during the execution of a process.
If you are (or once was) studying different paradigms languages and particularly logic paradigm, you probably had noticed the low availability of integrated development environments (IDE's) for Prolog.
ProDT was born as an attempt to overcome this shortcoming by generating a Prolog IDE over the Eclipse platform currently supporting the following Prolog implementations:
If you develop web applications and you think using WTP is a little more overhead than expected, you could try using Sysdeo Tomcat Launcher which is basically a direct launcher of Tomcat's process integrated to eclipse for which it is very lightweight.
The drawback of Sysdeo plugin is its lack of administrative elements of what's running on Tomcat which gave birth to Uqbar Tomcat XT