Leiningen is the defacto in Clojure world. You will make a lot of friends if leiningen is envolved in your question, not to mention it is rich in features and really awesome. Leiningen is optimized for Clojure and ClojureScript development.
Don't install Clojure that way, even Homebrew has deleted Clojure as formula.
You are using Ubuntu 12 and still you get Clojure 1.1.0 Imagine how Clojure version is very outdated at Ubuntu repos.