I am considering preparing and taking the SCWCD exam and just got a book. However, I have noticed that the existing enterprise series is going to be replaced shortly. If I knew that I had at least 2-3 months, I would probably go for it. But there are no definite dates given except for "early 2010". What do you guys think? If I were to purchase a voucher now, would I still be able to take the test throughout the validity of the voucher?