Preschool Recommendation for Nesconset, Smithtown, lake grove, lake Ronkonkoma area

Hi,
My twins just turned 2 so I'm starting the preschool search. I'm thinking of sending them 2-3 days a week when they are three. Any suggestions on a good, yet affordable preschool in the Nesconset, Smithtown, Lake Grove, Lake Ronkonkoma area. I'd ideally like a school that has a good balance of academics and play (don't want just play & socialization or too strict an academic environment). I'm open to co-ops since I'm a stay at home mommy. Please help, I've been looking online but I really can't narrow them down.