These questions from Kia:
"1. My husband and I both are interested in teaching in Korea this year. Which company do you recommend?"
I'm not sure exactly what you mean by "company." A school, a chain of schools, a uni, a recruiting agency? The ESL landscape changes so rapidly in Korea that it can really be hard to give any blanket advice on what recruiter or hagwon chain is a "good" one and which is one is a "bad" one. Most people end up randomly picking a school for their first year, having not a great experience, but wising up and picking a much better job for year two!
"2. We also have a two year old.. Will this be a bad thing? Or would it be easy to find childcare?"
Finding childcare without speaking any Korea will be difficult. Even after a few years in Korea and some basic Korea I'd find it quite a difficult task.
However, childcare isn't the biggest issue here. Most schools will not provide housing suitable for a family, especially for first-year teachers coming from overseas.
"3. My husband has a Visual Arts teaching license and is working on his thesis for his Masters.. could he find a Uni job?"
It would be very unlikely in his first year. Second year, with a completed masters it is very possible.