Make sure you have enough working capital to make it through the starting up period. I see so many businesses close here that were only open a year or less. I don't know if this still holds true but they used to say that a new business loses money the first year, breaks even the second year, and starts showing a profit the third. Plan ahead for that.
Check out SBA loans (if they still have them!) My mom got one for her drapery business years ago. Back then they liked loaning to women. They were considered a minority and so it was pretty easy to get the loan. Maybe it is still the same way. They offered all kinds of classes to help us with our business too.
Get a good accountant.
And most importantly - follow your dream. Life is too short and we shouldn't spend it thinking about "someday". Go for it. You will always regret not following your dream. I also have this dream but it will always stay that way. I'm broke, bad credit, bad health. So GO FOR IT!! That way I can live vicariously through you!!
:-D :-D