Education suggestions

OK, starting a new project and would love to build it out with tests this time. I've gone through all tutorials I can find but still have lots of questions. Does anyone know of a good walk-through of a real project or good blog? It's confusing to the novice (at least me) who has no JUnit experience. I'm not even sure if the tests are generally built in with the dev project or are a parallel project where one creates the tests, the classes that address the failed tests which are then ported over to the real app, etc. Those are pretty basic questions and I'm surprised I haven't found a good answer so suggestions are welcomed. The short tutorials, like Elad's and the blog, provide enough detail about the specifics but don't provide a global overview of how a test-driven project develops, imho.