We will need to know a little more about what you are trying to get done. Will you have a web page? How many people will be on your network? How many will have in a year? This will help with the planning for growth. Are you planning on email? Will you be selling things on the web?
As you can see there is a lot of open questions. You really need to think of the stuff that has nothing to do with computers. Items like growth, products, types of service to support your company.
I hope that this helps a little.