RE: Starting off
Hi,
Like nearly everyone it is usually quicker, easier and cheaper to start with a trainer and an instructor. Given your location in the UK there is a very structured approach to learning to fly. I would suggest that you visit your local club and enquire when an instructor would be available. As to the model I would suggest a "Wot Not" kit as a good starting point. The club may well have a "loaner" trainer available to start you on your path.
Cheers,
Colin