My daughter is at Ducks, am very happy with it and it's a lovely setting - but she has to go in year 3 at the age of 7. The stress of getting into prep for year 3 isn't great and I am moving into Dulwich Village to get into the catchment for the Hamlet as back-up. Do what you can to get your kids into Alleyns at 4 - those are the most prized places. I don't know what they assess at four but I would make sure they know how to write their names, basic phonics and numbers to 10 I guess? Am sure someone here could tell you. When I did my research it seemed that Oakfield is not generally perceived to be as good as the schools mentioned above, but I have heard very positive reports and being a bit detached from the hothousing that goes on for 7 plus entry elsewhere might not be such a bad thing. And (just in case) don't worry about it being stuck up. Like you are working out, it's often cheaper to fork out the fees than the mortgage to get into a decent catchment. There are lots of nice, normal, hardworking parents who feel a bit forced into it all. Oh yes, register your kids now, keep your options open. Our kids are lucky to have options I guess. Good luck x