If you have DSL or cable modem ? buy a wireless access point. Linksys makes very cheap APs. Configure your AP to use some encryption like WEP or WPA-PSK ( for making it secure) though its Web Interface. Probably your laptop already has a wireless card . If not, get a card from bestbuy or fry's. Install the driver that comes with the wireless card. Configure it to use the same security that you configured in the AP. Select the SSID of your AP from your laptop. you are all set to go Wireless. If you have a dial up ??? it can be done but a little more work. you need to install more software.