[plt-scheme] What environment to use for PLT development?

OK, so after Sam fixed the Typed Scheme bugs, I feel obligated to
check out the SVN code and start playing.

How should I set everything up so that development is pretty easy?
Given the DrScheme key-bindings, I'm guessing Emacs is a common
choice, but I'm not sure what extra goodies I should use to make
building and such fairly easy.

Does anyone have a description of what they use to develop PLT and how
it's all set up?

Todd