Just to give you some perspective on the use of wireless networking hardware in the home, almost 7 million WiFi devices were sold to home computer users in 2004. So while you certainly aren't on the cutting edge in terms of adopting wireless technology, you can rest assured that the standards have been tested and used successfully by a huge number of home and small office computer users just like yourself.
After you have set up your wireless network (as detailed in this book), you will want to share printers, files, and other network resources, particularly that high-speed Internet connection. Install the Router and Access Router Configuration provide you with the necessary steps for connecting the wireless router to your Internet connection. About Sharing Network Resources provides details on how to share printers and files on the network.
To get the most out of your home WiFi network, you will want to make sure that you create a secure network that negates the possibility of security breaches from outside the network. Because WiFi uses radio signals for data transfer, unscrupulous folks can eavesdrop on your network and actually view data. And we have all read about the different types of attacks that can be launched over the Internet. About Basic Network Security is a must read. You won't get the most out of your WiFi hardware if you are constantly experiencing intrusions on the network.
Outfitting your home or small business with a WiFi network is definitely a smart move. It not only makes it easier for users on the network to collaborate, but the network can also be used for multiplayer gaming and other recreational pursuits.