Your method looked really promicing, it got me much closer than the others in that ndiskgtk now acknowledges that the hardware is present and it gets an IP address. Unfortunately I still can't get online (or even ping out), even on a wire. If I disable eth1 (formerly wlan0) eth0 suddenly starts working again. Any ideas? If it helps, this wasn't the first thing I tried to make it work.
I appreciate the help in advance.