S.,
Kiddie Campus University (KCU) is on US 41, just north of the Florida/Nebraska split. They offer VPK and have a GREAT program. I transferred there a year ago from Primrose (which is suppose to be all about education and not daycare) and within a few months of being there at age 3 (just about to turn 4), my son was reading small 3-4 letter words! They have a great boy/girl ratio as well as a good ethnic blend. The overall VPK class has about 35-40 kids; however, they split them into groups and have two teacher per group. They are very structured and have a great system for behavior (red light, yellow light, & green light) - they are pretty strict about behavior and are trying to teach them about what their classes are like in kindergarten. I even have a 2 1/2 year old there as well. You should check it out! I have had other parents from Primrose transfer as well after seeing my son's progress and they too are so impressed.
Last year when I made this move, I looked at so many schools in the Lutz, Land o Lakes area and found nothing that compared! Let me know if I can answer any more questions for you.
Good luck,
Sam