I used to love using names like "GOTHEFUCKAWAY", but I just turned off SSID broadcast, tied it to my MAC address, and change my WPA key every few weeks.
If someone still manages to get through that, I'll hire them for some grunt work.
Edit: setting a really strong key on a 'bogus' wireless with a standard name of "linksys", or "default" was fun to do in the old office.
