In this day an age your website is another huge factor in your brand identity. It will be a tool that in and of itself can open up an entire world of opportunity for your business either when you open your doors or down the road. I would recommend having a professional design your website, like your logo, this will be many customers first impression of your business long before they walk into the door.
Your website should be broken up into a few distinct sections or pages with an easy to use navigation system. You should also use a design that is responsive, that means it is easy to use and navigate a number of different hand held devices.