I know quite a few families that home school. Some are for religous reasons but two are becuase the kids are particularly gifted and their needs are not being met at school. Our school district has what's considered an exception gifted program - but it's still only a pull-out program once or twice a week - so the kids are still not being challenged day in and day out.
If you're trained as a teacher you could definintely do this easily. From what I've seen in these home-schooled families is they get all their work done early in the day and since there's no home work they afternoon is free. I hear it's very liberating - not homework at 5:00 or 8:30.
There are home school groups in most communitites who get together once a week for enrichment programs, art, music, career days, field trips to local museums at discount, etc. There are even home school conventions where families go and select curriculum. I'm sure you can find resources online - and probably even used textbooks and such. I'm not sure of requirements - but some school districts make their books and curriculum available to homeschoolers - afterall you're paying taxes.
I know one family with 4 boys - the dad is a surgeon - and the mom home schooled various boys in various years based on what was going on with them, etc. Her boys are all now either in college or have graduated and they're all great guys. The mom says she just cherished all those days with her boys.
You can easily do this mama - you may find it to be such a great experience that you may opt to do it again in other years.