I did my training from PPL to CPL ME-IR with National Flight Centre (NFC) at Weston, and would highly recommend them. Great bunch of instructors and staff, always willing to put in time with their students regardless of the level they're at or what license they're working towards. They've got a good setup, with briefing room and area to get weather, NOTAM information which will prove very useful to you when you start doing nav planning for cross country flights.
Other schools at Weston are FlightWise and Skytrace, but I'm afraid I've no experience with them.
Best of luck with the PPL