Hi Ricky,
I feel for you not knowing if you will be able to become a pilot due to colour-blindness and I hope whatever R&D they are doing will be able to help you achieve your goals.
As for where to do your PPL I would suggest visiting each school in Norwich and deciding based on your personal experience. Remember that cheapest price per hour may not mean best school and if you end up going to the cheapest school and they have poor instruction, you could end up needing more hours to complete your PPL. Go for a couple of trial lessons at the two you like the most and then decide.
As for ATPL's/CPL etc. don't just go for the nearest available school, make sure you check out a number of them and again, pick the one which suits you best for quality of training. Although if you are planning on commuting everyday you may be limited to ones nearer to you.
Sorry for being a bit vague but I haven't really got any experience of Norwich schools, I am just a bit further south in Suffolk and Essex
Good Luck
