Am looking to set up a wireless network in my friends house. They have 3 pc's 2 on xp and 1 on W98. One pc has a LAN adaptor connected to an NTL Set-top box. Want all 3 to share this internet connection. PC 1 will always be on and connected to the internet so don't really need a router. I know that pc's 2 and 3 will need a wirless network card each, will pc 1 just need a wireless access point and will the USB give a decent performance.
Otherwise could PC1 connect to a wireless router by cable and PC 2&3 connect to the router with wireless cards, will this still act as a proper LAN or will it just share the internet connection.