OS X editor (or IDE) that is really good for "node.js" development?

I'm an old Emacs user. I've used it for about 10years now. When i switch to Mac i started to use Aquamacs, which is great in many ways.

But now most my development is in Node.js/Express.js with JavaScript, Jade and Stylus. Emacs has many shortcomings in that regard. Specially when working remote with ExpanDrive and MacFUSE mounts.

And i really want real code folding.

Is there any Editor which is really good for this. Even better is there any IDE for Mac (at all)?

Thanks

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