Thanks again, Shine. I just recently started working on poetry again after a long hiatus -- most of my recent work has been in creative non-fiction, technical and business writing, game design, and political commentary. (Most of it was lost in a computer failure, of course. FML.)
As far as the MA in Rhetoric and Composition, it varies a little based on where you attend, but the bulk of it focuses on teaching writing on the college level, and the bulk of that focuses on teaching English 1 and 2 (so-called "First Year English"). I was much more interested in rhetoric, rhetorical theory, and the use of rhetoric as a critical theory, but very, very few professors anywhere focus on that kind of work (within rhet/comp, at least). I can give you more detail if your interested and I'd be happy to share my experiences with you, but the short version is that unless you are 100% sure that you want to teach college English, get a PhD, and spend about 1/3 of your time publishing and the other 1/3 doing administrative work, I wouldn't advise it. If you're interested in writing while teaching on the side, you may look into an MFA program, but I definitely have a few things to tell you about that if you're considering it...
If you let me know what your interests are (academically and future-professionally) I can share my thoughts (I'll also let you know what I think my biases are, so you'll know how to weigh my opinions -- remember that anyone in the academy is especially biased when it comes to recommending courses of study, evaluating institutions, and giving professional advice -- the pie is small, so everyone is fighting for their slice).
Feel free to email me (richardpaez at gmail dot com) if you'd like to discuss any of this in more detail. I'd love to know more about your work and scholarship. :)