I agree with Bill Fotsch's suggestions AND as a prelude I believe you want to identify what role/responsibilities you want to handle in the day to day operation of your job on the way to identifying the skills you need and want to hire. As the business leader you will be involved to some extent in every aspect of your business however by identifying the area of it in which you personally can be your best and offer the best to your clients, you will then be able to define what skills and strengths you need to hire.
Once you have your team, regardless of the number, and critical to the success of your product offering and thus your business success, is that all of you on the team are aligned behind the vision that you have for the business. Involving the full team in creating the specific goals and steps related to the vision is key to getting everyone's buy-in to where you are headed. Once they have had the opportunity to be involved it its' creation, they also own it along with you. This will enhance the likelihood of your meeting your vision.
Finally, I suggest that you expand cautiously and bring on-board only what you believe you will require over i.e. the next 6 months as well as what business will look like when you will now you need the next addition.
If any further questions don't hesitate to ask me. Your at an exciting place and with a great problem to have.