WOW…I love getting these ones. Step one…..meet with EVERYONE who will be involved with the business from the CEO and CFO to department heads. Take a long hard look at the business plan for the company and build your business case aound this. Now, when you are ready to start building the network, take a long hard look at your budget then add to it. I can almost bet that the first budget will fall short. You will be building your network around the budget. There are several good sources for information and no one source will have everything you need. Do tons of research…..Google your questions and look at some the sites you find. Ask questions in forums such as this when have specific ones. You should plan on being busy for a long time on this. What ever you do, make sure that your infrastructure will be able to handle what you want it to do and build in room for growth right now because getting more money later will very difficult if not impossible. Do some homework and then come back with more questions. Like I said….these are my favorites. If this is a school project, do LOTS of homework!!!