The JVM seems to have a fresh breeze blowing throw it with alternative languages like Groovy and Ruby. But for me, the standouts are Scala and Clojure. Many of us grew up with OO and Java was our language of expression. But Scala and Clojure are different. They have a functional side and expressing OO thoughts functionally is painful. We we will explore what it takes to shift your thinking gradually (not overnight) to take advantage of Scala and Clojure's functional side.