RubyMine is something you may want to look into then. While it's commercial, you can often get a free license if you work on an open-source project. (I won a f

RubyMine is something you may want to look into then. While it's commercial, you can often get a free license if you work on an open-source project. (I won a free license as a prize at a conference a few years back and it's really quite nice.)