I'll put in a vote for Northumbria School at Ncle. I started last Nov. and have found everyone helpful, the aircraft reliable and the cost very fair. Circuit practice can get expensive due landing fees but like many I went to Carlisle for some of my circuit practice. It is also possible at Ncle to spend a lot of a circuit session orbiting on downwind leg for commercial traffic but on the other hand it is good experince to mix with the big boys and girls.
PM if you want more info.