Home Network with 2 Dell laptops, 2 Dell desktops

Setting up a wifi network is very easy with Windows 7. All you have to do is go to "Set up a Network Connection," create a network name and password, and then all other wifi capable computers in the house will be able to connect to the network by simply entering the security password.

To share files such as music and pictures between the computers: Windows 7 makes this process easier as well, by offering the user an option to "share application/programs with other computers on network."