Babel provides a simple Eclipse plugin that provides sytax highlighting for babel files.
To install the Eclipse plugin simply copy the 2 jar files from the eclipse plugin to your dropin folder of your workspace, for example;
<<babel_root>>/syntax/Eclipse/plugins/*.jar copy to <<eclipse_workspace_root>>/dropins/plugins
Restart Eclipse
Now anytime you create babel files you should have syntax highlighting and some minor code completion for things like valid data types etc.