Perhaps a fun weekend project if you're looking to revitalize an old laptop w/ wireless: NetBSD 4.0 seems to be running like a champ on my old Dell Latitude CPx. I purchased a low end D-Link pcmcia wireless adapter for it, which NetBSD detected without problems.
Wireless / WPA setup is nicely documented in the wiki:
http://wiki.netbsd.se/index.php/How_...cted_using_WPA
A few simple lines to add to /etc/rc.conf (and /etc/wpa_supplicant.conf) and you're ready.
Worth checking out if you would like to try something different.