I have twin boys who are almost 14. I bought them laptop computers for Christmas so they would leave mine alone. Then came the problem of internet service. We had dial-up which meant only 1 computer could be on at a time. We live in the country so our only option for high-speed is satellite, so we got one.
The boys wanted to be able to use their laptops anywhere in the house so we bought a Linksys wireless router. This small box has ended so many disputes that it is a blessing. My husband or I can be on the desktop and both boys can be on their laptops and it works wonderfully.
The boys also have Nintendo DS and a Wii which are both wireless capatible. So at times we have 3 computers and 2-3 game systems on the internet at the same time. And while this does slow down our speed somewhat it is still fast.
It was very easy to set up, just plug your ethernet into it and run the enclosed disk in your computer and follow the instructions. It is very small, only about 4 in. by 5 in. We can get a signal anywhere in the house and on our front porch. We tested the range to see if anyone else could pick up our signal but always lost the signal before leaving our property (3 acres).
In my opinion this is one of the best $50 I have ever spent.