AAC Plug-in For Audition
I just received a tip about a free Audition plug-in that adds AAC import and export support! I haven't tried it myself, but the tipster let me know that it seemed to work well for him. It's up on rarewares.org. Just scroll down to the AAC Encoders section.
As always, let us know about cool uses, plugins, or anything else interesting about Audition at coolaud(At)adobe(dot)com.