MCSA or MCITP: SA

So just got out of a training session at work about migrations to Server 2008, and the instructor got around to asking about certs. After an extensive conversation, he suggested that i ditch 2003 and start working towards 2008. His strategy for persuasion included how I already have my Vista 620 and there are fewer exams for MCITP:EA than there are for MCSE 2003. However, I'm a little reluctant because I'm about ready to take the 290 and 291 and would hate to have to start over my reading and study structure. My question is how much does Server 2003 material overlap on 2008 materials? What would you do in my position considering the certs that I already have? Do CompTia certs also substitute for 2008 elective exams? I'm there have been hundreds of other threads like this, sorry for the redundancy

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Working towards 70-291 and CCNA
Future Goals (In this order):CCNA, MCSA, CCNP, MCITP:EA, CEH
"Consider yourselves lucky I'm not after your gully holes..."
Working towards 70-291 and CCNA
Future Goals (In this order):CCNA, MCSA, CCNP, MCITP:EA, CEH
"Consider yourselves lucky I'm not after your gully holes..."
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-Always working on something...
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I know I have to choose an operating system also to complete requirement
Edit: Psoasman, it doesn't look like they're adding Win7 to the 2003 tracks, even as an elective.
Working towards 70-291 and CCNA
Future Goals (In this order):CCNA, MCSA, CCNP, MCITP:EA, CEH
"Consider yourselves lucky I'm not after your gully holes..."
It would be 2 exams. the 648 and the 646
Per my Certification Planner on the MCP site, I have "Windows 7, Configuration" listed under client exams for MCSE.
Novell: CNE 3-6, CLA, CLP, CLE -- Nortel: NCDS, NCSS -- CompTIA: Project+, Server+, Linux+, Security+
Courses Completed at WGU:
EWB2, BBC1, LAE1, WFV1, SSC1, CLC1, WDV1, MGC1, ORC1, INC1, IWC1
Courses Required BS - IT: NETW:
LAT1, LUT1, INT1, SST1, LET1, IWT1, BOV1, TWA1, CPW2
Classes Transferred:
BAC1, TEV1, TTV1, QLC1, QMC1, QLT1, TSV1, TPV1, TNV1, BRV1, ABV1, AHV1, AIV1, AJV1