I don't know how much money you have; but either way you're going to have to do some investing to make money and if you don't have much knowledge then I don't know why you would want to start a hosting company.
Not trying to mess the OP's plans and all that, but yea - I agree.

This will definitely go south unless you have a proffesional server admin working 24x7 to respond to tickets etc.

Best of luck!

regards,
Ryan