Hi Desireesam,
I embarked on a mission to find a good pre-school in Eldoraigne/Wierda park area about a year ago since I was unhappy with the one which my LG was attenting at the time.
I have generally high standards in life

therefore I was sorely dissapointed in most of the schools I attented, except the ones that were more expensive!! I was not happy with the child/teacher ratio which was in most cases 23 - 30 children (aged 2 -3 years) per qualified teacher (plus one assistant not qualified, basically can keep the children alive!). I find that ratio is too high. Children are then basically just kept alive, and you can't really teach or impart skills on such a big group in my opinion.
I was also schocked by the extreme small classrooms in most places. The children looked like a bunch of sardines in a small tin!
I was impressed by OPtibaby in eldoraigne, however they were the most expensive of all the places i visited. I also thought Bundibos was acceptable but they are fully booked for like the next 3 years! I was number 101 on the waiting list!!
My neighbour was very happy with "Little village christian nurser school" if the religious approach is not a problem for you. She had all 3 her kids there and was really happy. They have been open for quite a number of years. Here is there website
www.lvcnschool.co.za/gallery
I got this list of schools in the area. I would suggest you phone a couple of them first and ask about things that are important to you before you visit. I really wasted my time driving to a lot of them! Have a list of questions ready that are important to you, like discipline strategies, child/teacher ratio, school ciriculum etc.
Good luck with your search it is not an easy one!