Which test to take first, 70-270 or 70-290?

I am seeking my MCSA. I am looking at the idea of taking Microsoft certified classes for the exams. The person I am dealing with at the school suggests I take the class for 70-290, Managing and maintaining a Windows Server 2003 environment. However my knowledge of Windows Server is very small, while I have a much larger knowledge of Windows XP, so I am wanting to take the class for 70-270. The person at the school says the class for 290 will help me with 270's class. What do you guys think?
Comments
One thing to note is that there is some overlap between the two exams, so preparing for the 270 won't completely take you off track for the 290, or vice versa.
Its really not that big of a deal, just a preference. I'm of the mindset to get 290 and 291 done first because they are newer and more difficult.
Anyway, regardless of which route you take, I suggest you sign up for the second shot promotion while Microsoft is still offering it.
SO...
Smart thing to do would be go for the Vista client exam. Kill two birds with one stone.
Edit-Actially it looks like they are gonna have something that directly replaces MCSA and MCSE and haven't released it yet, but that you should continue to persue the 2003 test. Anyone know release dates for these things?
By taking the 70-620 you can get your MCSE and MCITP.
It's real important to have both on your resume for the next 3-5 years, as it will take years for the HR departments to stop text searching resumes for "MCSE" when they filter cadidates.