T.S.
J.--
I paid $9 an hour for one child, many years ago, in my home. Then I paid more than that for two children, in my home. I never did day care outside the house, but I did do half day preschool at some point, and it was not cheap.
You need to do what works best for you, but I would think twice before leaving my children in the care of someone whose only toys for a 2 year old and a 4 year old are from a dollar store. Is she going to sit your kids in front of a TV all day? Would you want that? (I never allowed TV when I had childcare...other than for the sitter herself if my children were asleep.)
You can go to yard sales and pick up toys your kids like, and bring them to the sitter's.
You say she has 10 years experience, but what age was she sitting for? How can she not have appropriate toys in the home? Also, if she is an experienced sitter, how can she think that the junk from dollar stores would be sufficient and appropriate for these children?
Being a working mom and dealing with childcare is a struggle. I know how difficult it is to find quality care, especially for part-time hours, but before you jump into this, I would make sure this is what you really want and need.
(Over the summer, you may be able to do well with a college student in the home, giving you more time to find appropriate care.)