rich p said:
I'm a bit of a dunce when it comes to computers but I want to get a laptop with wifi to roam around the house. Is it as simple as buying the laptop and a router, plugging it in and bingo? Any pitfalls, esoteric quirks or specs I should be aware of?
If it is a new laptop it will almost certainly have the wireless hardware built in. A Dell I bought about 4 years ago didn't and needed a wireless network card.
Make sure that you get the right type of wifi router. If you want it to work on a normal telephone line, you need the ADSL type. If you are going to connect it to a Virgin Media (former NTL) cable box, you need a Cable type (surprisingly!).
Some wifi routers are better at the wifi job than others. If it is a small house and there aren't too many walls for the signal to go through it might not be too critical. If you have a large house, you might need quite a beefy signal to get decent performance at a distance (for example at the far end of a big garden). If the router has a detachable aerial (some do, some don't) you should be able to replace it with a bigger one if you need to. Normally you wouldn't need to bother.
Take a look at somewhere like
eBuyer.com. They have a wide range of stock and some good prices. Remember to read the customer reviews. Pick something that has a large number of good reviews and you should be okay.
Make sure to secure your connection properly. You don't want people to be able to nick your bandwidth, capture your passwords flying across the airwaves, and you
definitely don't want someone sitting in a car outside your house to be able to download child porn using your wifi connection
!! WPA is what you want to use NOT WEP (the latter can be hacked very easily. Make sure that you use a nice long and impossible to guess encryption key.