WPA (PSK) in Ubuntu

[Bryan Pizzuti]

Ok, I finally got my new Thinkpad yesterday (Yay!). CPU scaling is working
fine, dumping a bunch of stuff onto it from Universe and Marillat right now
(Goody!), havn't played with getting software suspend to work yet.  One
problem....my home network is WPA, not WEP.  So the wireless interface
doesn't seem to be working.  Thinkpad T42.  I know someone else on here has
one, so I don't think it's a matter of a software switch not being
configured (Unless he's not using the IntelPro "Centrino" wireless chip?).
Anyway, how can I get this thing to go WPA/PSK?  I hate WEP...it's insecure
and I have a fileserver sitting on my network.