http://www.microsoft.com/learning/en/us/offers/Career.aspx#certification

Get up to 25 percent off select Microsoft Certification exams

Take control of your destiny and chart your career path. To help you pursue a new career in IT, move from one job role to another, or help you become indispensible in your existing role, Microsoft provides discounts on select Microsoft Certification exams.

• Discount offer is valid worldwide.

• Offer is good until December 31, 2009, or while supplies last.

• Customers must register, schedule, and purchase their discounted exams by December 31, 2009.

• Microsoft does not guarantee that candidates who take exams will pass.

• Offer does not include Academic exams.