I was never in the corporate world, but I earned my undergrad. degree in sociology. I decided to go into education after I had my son. I had to do a graduate program designed for people who already had a degree in another field. The program I went through here in Maine was through USM- called ETEP. I also had to pass the Praxis tests. I worked in my district for 3 years and am now in the middle of my master's program (paid for by the school district).
As others have mentioned, teaching is a stressful and time-consuming job. I easily spend 10-20 hours more a week working at school or at home than those who work typical 40 hr./week jobs, with no overtime pay! However, the vacation time is nice. I also appreciate having my son at my school, especially since he is having a hard transition to Kindergarten and I can work closely with his teacher. However, I can never leave right after school with him, so it's not like I can spend my afternoons with him. I love my job, but I often feel like I'm spinning plates like a circus performer and if someone adds another plate, it'll all tumble. Then someone comes along and adds another. I have to constantly remind myself that I am there for the kids and they are worth it.
I suggest you get your feet wet by becoming an ed. tech or substitute. I'm not sure what your financial situation is, but if you could afford to make less money and be an ed. tech, that's really the best of both worlds. You get to be in the school, work with kids, have fewer responsibilities and time demands, and get vacations.
Goodluck on this major decision!