Last week, we had the author of TDD for a Shopping Website LiveProject. Friday at 11am Ranch time, Steven Solomon will be hosting a live TDD session just for us. See for the agenda and registration link
Both are same. I have also heard about that, before launching the exam, for sometime there is beta version of the exam available. If it is completely free or huge discount is there, or some other restriction like, you must be already certified from Sun to avail the beta version exam. I am not quite sure.