I haven't taken any recent exams. For many months I thought about the MCDST cert, but then Vista came out. I could do the 70-271 and 70-272 then do the upgrade 70-621 test to Vista. What do you think? I'm sure I could pass both the 70-271 and 70-272 in one month as I actually have been studying on that already. Or, should I just do the Vista Cert instead?