My buddy just looked into the best state to setup his LLC and Nevada is still it.
As Bobby said, you still have the self employment tax from your state. Self employment tax is extremely high though, not good. I was paying a little over 30% in 2008.
Don't forget about the "flow through" concept. If you have 20k sitting in your business account at the end of the year, I believe that gets recorded as your income. I could be wrong on this, but you may want to look into it.
I think if you're the sole proprietor you can't be an employee. Not sure though.
An entrepreneur tends to bite off a little more than he can chew hoping he'll quickly learn how to chew it.