Mutt Keychain

I use Mail.app as my primary e-mail reader, but there are some times I just prefer something less lickable (and annoyingly buggy), in which case I fall back to good old mutt. I store all my mail in IMAP, so mutt needs to obtain a password in order to connect. The current choices are hard coding it into my .muttrc (boo) or typing it in every time (not so fun in these > 8 char password days). So I’d like to extend mutt to tie into a helper app which can get the password for it, and write a suitable helper to interface with the OS X keychain.