Richard - is MAC address restriction a reasonable level of security for the domestic user? The BT Voyager 2000 which I use is a single box which contains both the W-LAN router and the Broadband modem. I have set it to 'talk' only to 2 defined 'wireless clients' using their MAC addresses and have set a normal level of firewall security in the configuration set-up. Is WEP really needed in addition?
Presumably the easiest way to add a normal PC to this is just to add a wireless card (it's an 802.11b system) to the PC tower and then to add the card's MAC address to the list of 'wireless clients'?