Wireless Network Watcher

Product: Wireless Network Watcher
Company: Nir Sofer
Website: www.nirsoft.net
Type: Free
Requirements: Windows XP/Vista/7

Wireless Network Watcher is a small utility that scans your wireless network and displays a list of all computers and devices that are currently connected to your network.
For every computer or device that is connected to your network, the following information is displayed: IP address, MAC address, the company that manufactured the network card, and optionally the computer name.

You can also export the connected devices list into html/xml/csv/text file, or copy the list to the clipboard and then paste into Excel or other spreadsheet application.