Holy Crap why oh why couldn't someone have posted this two weeks ago?! I just upgraded an internal application from Clojure 1.1.0 to Clojure 1.2.0 and had to upgrade my entire web-stack as a result! I was more than a little annoyed to find out that not only had Compojure outsourced nearly all of it's earlier functionality to other libraries, but that I could no longer just download the jars. I'm sure Leiningen solves all of your dependency needs when you are on Linux or a Mac, but I cannot get it to work on Windows and Clojure package maintainers seem to have forgotten that there are people who might want (or need) to install libraries manually without things like Leiningen or Maven. </rant>
I understand that Clojure is still young and that it's ecosystem is still evolving at a fast pace, and I understand why the changes being made are largely improvements, but for my particular circumstances it's a large headache.
EDIT: Here's a hint for people want to get a Clojure environment going but can't use one of the package managers for some reason or other: You can visit clojars.org and download all of the jars that you need. This was, you don't need a build system on you development machine. You still have to figure out what the dependencies are manually, but you aren't stuck if you can't get Leiningen or Maven working.