Many thanks to all those who took the time to reply. It has helped me regain my self confidence. Now is the time to go out and achieve.
The point raised by GonvilleBromhead is indeed very valuable. That is the only thing that can truely stop you is the medical. I shall now be going out and obtaining a caa medical.
Personally I will fly anything, of course I have my preferances. I am aware of the pressures of the job and the sometimes unsociable hours that have to be undertaken.
If I am to start training to get that seat I want to do it 100 percent. If this means writing to everybody, getting into debt and a large amount of work so be it. You can understand my fears about comitting when you read so much doubt.
Many thanks as it is rather refreshing to read positive words of advice.