Stray Cat ~~ Great news! I'll keep my fingers crossed too.
Kicky ~~ There are a number of different avenues for going into business. They include IRS categories such as Sole Proprietor, Limited Partnership, and Incorporation (which has subcategories). Each offers different levels of protection and obligation.
You would most likely be a Sole Proprietor because you don't need the levels of protection from being sued that a corportation gives you and therefore you don't need the hassles. The process is fairly simple. You register with the IRS, State of NY, NYC. You can download the forms or set up a meeting with an accountant.
I'm a consultant. I also do freelance work where I go to a business site and do the work they need to get done on their turf and their terms. As a consultant I am given the expected outcome and it is my job to give input, and in some cases I have total control, over how best to get to the end product. I usually do that in my own office setting, sometimes going to their site for meetings. I have one long-term client that I haven't seen in years. I am given a project, I turn over the results. How I get there is up to me. Because of the nature of my work, I set up a corporation. It wasn't difficult and I've been doing it for 12 years.
Here's a site with good info on setting up a business. There are links that specifically deal with Sole Proprietorships.
http://www.zeromillion.com/business/starting/going-into-business.html