I'm so happy to see Christopher's response. On other sites, we're told that you "must" anchor your hand against the bridge to fingerpick, but that you "must not" anchor your hand when using a pick. My husband, who has been playing guitar for 100 years (I can say that because he won't read this!) says that is bullhockey and you can do either or both when it feels right. Personally I feel better anchoring my pinky and ring finger when trying to fingerpick (not that I'm any good at it yet), and cannot rest my hand on the bridge and pick, without totally muting too many of the strings.
Thanks maggior for the tip about Folsom Prison Blues. I am a big fan of Johnny Cash and only know how to play one of his songs.