[Enc0de]

Have you just tried to sniff the air without connecting to anything i believe you can do that with wifitap. Sniffing the signals in mid air I think is the best way to go but there is a down side if there are alot of PC's and AP's your gonna have a big fucking dump to go through but the upside your learn a thing or two about it. Keep me posted and if you still need more info let me know.