I should follow up on my comment about the CMA not tangibly helping you in your corporate accounting gig...
I meant that the passing the CPA Exam is the quickest way to tangibly impact your current job.
However, more people than ever are taking the CPA Exam, so pretty soon, it will take more than a CPA after your name to nail your next job if you are fighting among several qualified candidates for the same position.
In this instance, the CMA is the next logical choice and trumps an MBA (in my opinion) in value.
I plan on taking up the CMA sometime in the future, but my initial interest in it was to sharpen my skills on CMA-related items, with the career-enhancing benefits being an added bonus.
With fewer jobs out there and more competition, you need to continue to differentiate yourself from the pack.
You're currently taking the CPA Exam to differentiate yourself from the non-CPAs in the workforce.
After the CPA Exam is over, you will want to consider adding on a CMA to differentiate yourself from your peers that are CPAs.
I have a good friend who is a CPA, CMA, CIA, and is now attacking his MBA.
Oh yeah - he's under 30 years old.
The days of passing the CPA Exam and then cruising for the rest of your career are over if you want to stay competitive.
Just my opinion...