Thanks for the replies. I certainly have considered Staverton and have flown out of there a couple of times with friends. I'll drive over to Kemble to check out some of the schools, and probably visit Staverton as well.
I'm spending a fair bit of time with MS Flight Sim at the moment in preparation (yep, I know it can cause you to be too reliant on instruments, and I'll make sure I don't forget that).
Cheers,
Rob