gambletron 3000's Journal: Emacs email on OS X

I've been trying to figure out how to set up an email system within Emacs such as Gnus or VM. The twist is that a) it's on OS X and b) I want to continue using OS X's Mail.app for its spam filtering abilities. So what I'd like is an Emacs mail package that can read Mail.app's mbox files instead of fetching the emails itself. It looks like Gnus can do that, but I can't quit figure out how. Plus I did see a reference to the fact that since the mbox format stores all emails in one file and when Emacs reads a file it loads the whole thing, you can run into size issues with the mbox files.

I'd like to combine this email setup with Hep to allow me to post to my blogs from Emacs via Hep. I've also been thinking about trying a similar approach using THE and Hep.