Good stuff.
We're also wanting to buy a house in Honor Oak Park. For us it's got it all: we can still cycle to work; the transport is good and will get better; there's a good balance of shops; there's lots of green space; there are views; there's a good atmosphere.
I've lived in Honor Oak (as in by the Forest Hill Tavern, near where the old Honor Oak station was) for 4 years and love the area in general.
But can someone please explain catchment areas to me a bit? I know I need to do my own research, but it seems very hard to work out just how much the 'rules' will be stuck to.