said by mackey:
2) Before hooking it up to the 2wire, log in to the admin interface (on the new router) and disable the DHCP server and make sure its IP address is different then the 2wires'.
Then my wired machines won't work unless I give them static addresses. The way around that would be to simply create a separate DHCP range on the WiFi AP but within the same 192.168.1 subnet as the RG.
Now I'll have to look into a good but cheap Wireless router.