There are many different local network solutions that are open to you. Whether you are a home office, small business, or even medium sized business you need to make decisions on how to best setup your architecture. There are many different options open to you and you more than likely will use a combination of several different things to form your network. It is important to make sure that you consider the security every step of the way. The last thing you want it is to set up a network that is easily comprised and have all of your work wasted. For the most part, businesses whether small or large will use some form of hardwired network for the majority of the systems. This is by far the safest way to go, but is also very difficult to configure. If the building is not already wired for a network it can be very expensive to configure all of the different ports and wires throughout the office. If you know how to do the wiring and patching you can save yourself a lot of money, but if you do not it is recommended that you go with outside help and bring an expert to assist you. The amount you will save versus the time lost will not end up being worth it if you are unsure what you are doing.