What I want to be when I grow up...

I had a few minutes before class today.  And, as I stared out the window at the unusually sunny February day, I realized that I am bored with teaching composition.  I don't know why this realization surprised me.  I rarely keep any one job for more than 3 years.  I guess I need change, professionally.  I now understand why certain classes were only offered once every three or four years (to keep professors from getting bored with their jobs).  I had planned on returning to school to pursue a PhD (in educational technology) when the boys are both in school, but that is 4 years away.  Can I keep my sanity teaching comp for another 4+ years?  How can I get the PhD now so I can shift to full time in 4 years (not teaching comp)?  How will I be able to juggle teaching, being a SAHM, and being a full time PhD candidite (I already procrastiate at every turn)? Can I convince a school to throw money at me (since we have none at the moment)?  The conundrums of life...