My two cents worth of advice, homeschooling myself:
It's not an easy thing to do, and the naysayers certainly don't help.
There are so many curricula out there, it could make your head spin.
Many of the really stupendous ones are EXTREMELY expensive, and if you have a large family, forget it.
On the other hand, there are some pretty cheap ones that you could filter through and make use of. There are even some very inexpensive online curricula out there.
But, there is one, and I'm sure I might get a thumbs down from some odd person out there, that is FREE from K-5. It covers science, social studies, english and math. All free.
http://www.ronpaulcurriculum.com/I have one that will be in third grade next year, but my others will be in higher grade levels. This is really inexpensive.
For 6-12, the cost is $250.00 a year for tuition, and $50.00 a class, so figure $450.00 a year. No book expenses, you just print the stuff out everyday.
Right now, I'm using
http://www.time4learning.com and I teach religion here at home myself. Yes, you have to filter through the social studies and science stuff, and even some of the English lessons are bogus because of content, but it's a decent program and cheap. It's like $20/month per child, and a little less for each additional child. There are worksheets, and the rest of it's all online.
Anyway, that's just my take on it. If you want to pay through the nose and you have the money to do that, by all means, go Our Lady of Victory.
http://www.olvs.org/index.asp?You'll still have to filter through the religion lessons, I'm sure.
P.S. SAXON MATH IS HORRIBLE!!! Save yourself some migraines and don't use them. They're trash, trash, trash!