That is the workflow I currently use, too. Luckily, Leiningen reloads most of my changes. I wished, though, there was the ability to save the current name space from the REPL. Hacking together a couple of functions and save their definitions when you're happy.
That's inverted I think. For JVM clojure I am always editing inside a .clj file, all the scrap goes in (comment) forms in the file and I send forms to the repl from the file. I rarely actually type in the repl.
