I know there are a lot of developer jockeys on this site. I'm working on a project where I'd like to use RoR. My background has been in Java development and I've been doing web stuff since the CGI was coined. But I've not set up a dev environment for RoR and I want to know what people use and what they find productive and efficient. I'll be doing this on Mac OSX, so any approaches on that platform are especially appreciated.

What editors are you using? How do you have your terms set up for optimal effectiveness? Are you using Mongrel or the OSX Apache? What's promotion from dev to production like? Do I have to install the whole XCode framework? Using MacPorts or is it a waste of time? Any other frameworks or tools that you find indispensable?

Also, is anyone using Spaces to keep the clutter from your dev environ separate from your "work" environ (email, irc, etc)? I'd almost like to boot into an image that was just for developing, do my thing, and then switch out. Just to keep those two worlds apart.