Andy -- If you decide to try with a 2Wire device, be it a 2700HGV or 2701HGV-C, it can be configured with the wireless off, the DHCP server off and acting as a pure bridge. That is to say it can be used to provide the physical link between the ADSL Broadband and a Ethernet router, DHCP server, firewall, NAT, WAP, etc, device, thus purely acting as a modem.