Hey OP,
I graduated with all of my pre-med requirements as an electrical engineer and worked in corporate America for 7 years before becoming a social studies teacher for 3 years. I applied last year and did not get in (but I learned the importance of applying early), got some great feedback on the schools that rejected me, quit my teaching career for more medical experience, and now I have one offer, was told I'm at the top of the wait-list for another school, and feel confident I'll hear from one or two others.
Being a former teacher has many perks - and my med school interviewers told me that they like the skill set it adds for me.
My advice: rock the MCAT, have a good narrative to explain your path from here to medicine, and use your experiences with diverse populations and presenting information to different learning styles to your advantage. Also - my understanding of best-practices in teaching made me gravitate towards PBL schools - and those schools like hearing about that.