I think my Unix/Windows fluent wife figured out what the problem was. It seems that we'd been trying to uses internet connection sharing a while back and DCHP had gotten turned on but not turned off. Also when I checked each of the systems in our little network, I noticed that they were each trying to connect to a nonexistent server. I've been running for about 40 minutes now and my console log is only reporting a printer error that seems to be related to starting up Classic. I'm not going to try to tackle that one tonight.