Aircrack-ng - Aircrack-ng is an 802.
Vistumbler - Vistumbler is a wireless network scanner for Windows Vista and Windows 7. Features:
Fern Wifi Cracker - Your description
inSSIDer - inSSIDer Essential makes it easy to maintain small business WiFi.
Wireless WEP Key Password Spy - Wireless WEP Key Password Spy will instantly recover all WEP keys and wireless network passwords...
Homedale - With Homedale you can search for Wi-Fi / WLAN Access Points and monitor their signal strength.