My wife and I owned a coffee bar for two and a half years. We loved it and we were sorry we had to close. The kind of bussiness you own can vary so much its hard to give too many pointers. A couple things though: its alot of work. You have to learn so much about suppliers, employees, taxes, city regulations, state laws, insurance and on top of all that you still have to smile at customers!

The other thing for us was that it was sure nice to have me working at another job so we could actually be making money. Keep that in mind when you are starting up, it can take alot of money to get things rolling. More then you think.
In the end we still own all our equipment and we would like to start something up again sometime. It was lots of fun, and you can have your own bussiness cards too which is way cool. |D