Google Reader (the best piece of software you probably aren’t using) recently added the ability to share out the RSS feeds you have which makes it easy to give out the subscriptions a person has to their friends. As such I’ve generated a kit with a few of my feeds setup by the folders I have them organized into.

You should be able to just go visit those links, if you’re signed into your Google account hit subscribe and be done. I don’t know if it’s smart enough to add them into folders, but my suggestion is after you add each package, you immediately go into settings -> subscriptions and then create a folder for each bundle.