Groovy Tools
- Groovy Monkey
- http://groovy.codehaus.org/Groovy+Monkey
- IntelliJ IDEA Plugin for Groovy
- http://groovy.codehaus.org/IntelliJ+IDEA+Plugin
- Eclipse+GroovyConsole
- http://groovy.codehaus.org/Eclipse+GroovyConsole
More stuff
http://groovy.codehaus.org/IDE+Support