R.W.
Have you tried Little Acres on Spot Road ###-###-####). They are a local daycare and I believe they have a fairly good pre-K. Cost is not outrageous either. My son goes there (although he is much younger) and loves it and all the women who work there seem to swoon over all the kids. Or, if you were willing to come a little farther south, and if you have not already contacted them, try Cumming First United Methodist Church. I have been in this community for 8 years and I consitently hear they have the best pre-K program.
Good luck.