I'd recommend you visit White Waltham (EGLM) and talk to them about PPL training before you start. I did and learnt to fly there 10 years ago, and now they can't get rid of me.
The grass only triangular airfield is never unusable because of cross-winds, but there's always one available for cross-wind training. There's an interesting mix of vintage, ex-military, modern and aerobatic fixed wing aircraft and helicopters, and a friendly restaurant.
The website is
www.wlac.co.uk
It's well served by frequent trains to Maidenhead from Paddington, or the M4 by road.
Christopher