Which wireless card?

Hi everyone. I'm new to this list.

I have a rather basic question that is Kansas City specific. I've set up a box which is running Ubuntu Linux. I'd like to connect it to our home wireless network. We have two Windoze machines connected using LinkSys equipment to Internet being served up by Time Warner.

Does anybody have suggestions about which wireless card will work with my Linux box? Also, does one run the executable file on the CD or does one have to copy files directly?

I found the networking app on the Ubuntu menu and it looks like I can configure the network (network name, WEP) once I get a device installed.

Thanks for any help on these basics.

Chuck