The Saxon Math program is fantastic! My family and many other homeschool families use Saxon, as well as some school districts. You can order the program new from rainbowresource.com (they literally have a hardcopy catalog with over 1200 pages of homeschool supplies, free for the asking, it has great descriptions of products), or order used parent/teacher lesson books from e-bay, as well as the workbooks and daily meeting books, which should be new to be of greatest benefit. PowerGlide has a really great foreign language program, we like it better than Rosetta Stone (we have both), my kids really beg to do Spanish, they love it so much. E-bay, Amazon, alibris are all good sources for homeschool supplies. Having a globe is really fun to, we often reference where places are in relation to our geographic location.
If you are in the USA, I'd recommend the HSLDA (Home School Legal Defense Assoc.) if you live in a high compliance state, and even if you don't. They are big proponents of parental rights and will advise you should you run into problems with your school district, even supplying you with an attorney if necessary. You can get a yearly membership, and a card announcing that you are a homeschool teacher. It has gotten us discounts for the entrance fees for some educational places we have visited.
Homeschooling is fun. Maybe your daughter only needs a little more individual one-on-one education to really excel. The one size fits all of public school doesn't allow for variations in the individual child, and in many areas the class size is increasing.
We have a weekly group we join for socialization, so the social aspect is taken care of.
Calvert Home School in Maryland, which also has a private school, has a comprehensive curriculum and offers an advisory teacher program, where your child has a teacher they are accountable to. It can be pricy however, and I don't like their math program-I and my kids find it confusing. They do have a good English/language program however.
Hopes this info helps you a little.
CJ