just after other peoples opinions before i go ahead with what iv got planned. ADSL connection comes in and goes to a router, then off to a switch, then a number of pcs are connected to the switch. we need to have wireless internet access, using a number of access points. however it will be sharing the existing connection. however there needs to be some security between wifi access and the pcs already in place. basically they shouldnt be able to access the pcs at all. How would you go about doing this?