I have a friend with a pre-k dd. She looked a My father's World and Abeka, but she says they're already doing those things and didn't want to purchase something unnecessarily. I suggest HWT, for learning the shapes of letters. I didn't do anything other than phonics and reading at that age, and provided misc. stuff for my children to use to put together something, so I'm stumped on a packaged, CM style deal. Also, I was working 3 full days a week when my children were 4 and 5, my husband was a stay at home dad and didn't have time for all the crafty things.
She's also looking for a craft plan or book(s) to go with what they're learning on any given day.
I think she would prefer something a little more laid out for her as she has a one yr. old crawling around and is not confident about hs'ling. I sent the link for "Education is..." "Reaching a Child's heart" and Masterly Inactivity" from Sonya.