Check it out. AirMagnet has a trial download for their a/b/g laptop software.
http://www.airmagnet.com/products/unstrung-laptop-eval.php Airmagnet 3.0 Laptop Trial Software Please fill out this form to download a trial version of AirMagnet LapTop Trio. You will need to provide your own a network card - click here for a list of supported cards. This demo version of AirMagnet Laptop Trio is designed to let you evaluate our award-winning product, however it is different from the production version in several ways: 1. It will only capture and analyze Wi-Fi traffic for up to 5 minutes, after which it will stop detecting 802.11 packets until you quit and re-launch the application. 2. The evaluation period is limited to 7 days. 3. It cannot be re-installed on the same laptop. 4. Selected data import/export functions have been disabled.
