If you want to run a secure home wireless network you'll need to set it with at least WPA-PSK TKIP and enable MAC Address filtering in your router's options. If your laptop is new you don't need to set up different profiles to use different wireless networks. Linksys is ok, but I prefer DLink in the generic network equipment arena. I've had trouble with a WAP54G dropping connections on a fairly regular basis. Don't think that because Cisco owns them they're close to Cisco grade equipment.