For anyone setting up a WPA or WPA2 network using a pre-shared key (WPA-PSK) the good folks over at Gibson Research have created a high quality key generator. WPA can be cracked if a low quality (aka dictionary word) is used in the pre-shared key, by using a 63 character random value, you will be same for the time being against any dictionary attacks on your wireless access point. If you are still using WEP, turn it off now and save yourself, see Bruce Schneier on the 60 second WEP crack.