You can research any topic and find great information online. Involve your husband. Let him add his knowledge on evenings and weekends. Use your local library. Become a regular.
Special classes are available at rec.
Curriculum sales are a great way to find excellent materials as well as find out what people think of them. You can usually find out about sales in your area from local homeschool groups. Above all, you've got to have fun. There will be times when you will feel frustrated and under stress, but don't worry. Remember, homeschooling should be learning at home, not taking school into your home.