The operation was fairly straightforward. View my page source, copy the meta-tags, hide the blogger meta-data tag in the head of my real template, & paste in the tags from the source, then edit the autodiscovery tags so that automated feedfinders will find the feedburner one and not the default blogger atom feed. Here's the scoop on which tag to modify, but I'd recommend that you read the whole thread.
Update: Improbulus dissects the blogger meta tags & tells you what each one is for, and which one to mod to change your feed.
See also Blogger Hacks: Syndication.
Thanks to GTD Wannabe for the inspiration.
Filed in: blogging blogger feeds feedburner blogger-hacks how-to blogtech webtech