Ok, let me rephrase my point.
Yes I would like to make a career of music and whilst I technically don't need to work, I can't sit at home all day playing guitar and singing to my dog. A 9 till 5 job isn't me at all, it would drive me insane within a week. I ran my own IT and and website design business for 5 years so I do know what hard work is (18 hour working days and VAT returns!).
I would like to make a career of it and make money with it but I am under no illusion that I am good enough to make a fortune or enough to pay the mortgage and buy myself a nice wee sports car. I just want to be the best I can be and get work to pay for a good life.

I don't want to be seen to want to take work away from professionals as I would like to be seen as a professional myself one day, Its just where do you start if you are a nobody?

There is a lot of really usefull advice here, thank you all!