loads of good advice there, the main part being realistic, start ups will take a hell of a lot of time and effort and it may seem like your going backwards sometimes, but its about how much you want it work is out there but it wont come to you straight away, you need to let the local people know you are there this can be done with little money, black and white flyers dropped thru letter boxes etc.
If there is something about your business you dont understand get on the web and research (business link) ask someone who knows, recruit the wife or a family member to help you with your invoicing if it not your strong point, cash flow is very important, its the blood in your business veins.
its all there if you want it, even in this climate!