Good luck with your new adventure. Just a suggestion: talk to someone in your area-around here it's called the Small Business Association (or something like that) and they can give you so much info on home-business rules. There are a lot of things you HAVE to do to run a home business. DH lost his job 2 yrs ago and started a consulting business from home. There are requirements for access (if you have customers coming in), taxes (different for home businesses) and lots of things we wouldn't have thought of. They can also advise you of loans, group purchasing, etc.
It will be exciting and challenging but if this is what you want--you go, girl!! It's really worked out well for DH except for the "downtimes" when you have no customers or income for awhile. Plan for that, too.