When i was there, the school was a state school but it has now gone private. For many years, I lived quite a long way away but I did go back once to look around and to show it to my wife. I also registered with the Old Boys association but have never attended any of their functions. Brian May is now a governor at the school and assisted with the establishment of a performing arts centre or something similar.
Jim McCarty of The Yardbirds (he may still play with them) was also at the school but I don't recall him.
There was another guy there, though, called Paul Stewart (I think that was his name) who fronted a group called The Others. They got a deal with Fontana and issued a single (Fontana TF501, "Oh Yeah" b/w "I'm Taking Her Home") that Jimmy Saville used to play on the radio. It was run of the mill beat/r'n'b, quite good of its type but I was more of a jazz/blues purist back then. Nevertheless, I'd have had my money on them to get somewhere but I understand that Paul Stewart decided not to pursue it any further, after that first single. "Oh Yeah" is on this double vinyl album, which I do have:
http://www.amazon.com/Beat-Merchants-British-Groups-1963-1964/dp/B004HJP4Y2... but the best thing about it is the cover art, which shows two paintings (by Tony Wright) of Potters Music Shop in Richmond, Surrey