If you've got the time, energy, and money to cover MCSE, MCDBA, and SAP credentials, go for it. A word of warning, though: you can no longer certify on Windows NT. You can only certify on Windows 2000 and newer OSes (such as XP, and Server .NET when it becomes available). I'm not sure that the MCSE is absolutely necessary in your case, but the MCDBA and the SAP stuff is probably an excellent idea. Be prepared to spend 3-6 months on MCDBA, and anywhere from 9-18 months on the SAP credentials.
This was first published in August 2002