I'm a partner in a law firm, and my brother is getting his masters degree in teaching. Currently he is a math and science teacher for kids in 7th and 8th grade. I'll try and do a brief analysis of the two professions.
I'm fortunate that even in this horrible economy, I'm still able to pull some decent coin. For the most part, my clients are cool, I work on interesting cases and the guys here at the office are great to work with on a day-to-day basis. But despite the money, the travel, the cases and the perks, it's hard for me to really enjoy it...I rarely go on vacation, and when I do, I'm never totally disconnected from the office. If a client calls, I need to be able to answer their question. The only time I am truly inaccessible to clients is when I am running.
My brother, on the other hand, earns significantly less. His car isn't as nice and he works in a classroom all day with kids. However, he appears to be much happier than me, has summers off, and when he walks out the door at the end of the day, he's not stressing about his job. He plays golf four days a week while on summer recess.
So, you're not going to be a millionaire teaching children, but I think you'll be much happier.