Thanks guys I will give this setup a go right now and report back.
So my E2000 is indeed the default 192.168.1.1 255.255.255.0
The N66u, when set up after the E2000, saw the IP conflict and changed it's IP to 192.168.2.1 255.255.255.0 (not 192.168.1.2). How does this minor difference change...