Not right in your area, but my friend and her mother opened a preschool last summer on Greenfield & Pecos (south of San Tan Village) called MorningStar Academy. After trying preschools from the biggest, most $ ones down to the smallest in-home ones, she still couldn't find a preschool for her son that fit her standards. So, she started one of her own! It's small and homey, yet has big facility-type things like cameras so you can see what your kid is doing at all times from home, and they are licensed and insured!!
My 3.5 year old daughter currently goes there and I help out there also. They are offering great deals for registering now for 2010-11 school year. I believe they are also offering a summer program again. I really suggest you check it out, it's WAY less than $1,000. I definitely think it's worth it to call and set up an appointment so you can check it out, it wouldn't hurt, right???!! Good Luck!
~L.
MorningStar Academy
2231 E Bonanza Road
Gilbert, AZ 85297
480-270-4MSA ###-###-####)
http://morningstaracademy.com/