New Year New Challenge

Good to be back again with new year mood and things will be start all over again. I guess I will be busy soon preparing my self for the MCSA certification exam. I wish to complete one or two of the four papers before chinese new year. But I have doubt about taking one of its paper which is 70-270 paper or Windows XP Professional. Since we all know that Window Vista is going to be release soon, taking 70-270 is not advisable by some of my friends. What do you suggest?