I’ve been using FeedBurner to power the RSS feeds on this site for a long time now, and I can’t exactly remember why. They seemed to be causing problems with the ‘read more’ link so I’ve switched FeedBurner off and gone native.
Google Reader should auto-update any subscriptions (at least, it did for me), but if not then consider this my I-really-should-have-mentioned-it-before-clicking-the-button message to update your RSS reader.