You'll need to find out which chipset your NICs are using.
If it's a cardbus adapter, try "cardctl ident" from a root prompt.
If it's a PCI-based NIC, try "lspci -v"
These commands may or may not work, depending on your Linux distribution and revision. They are part of a WIFI package, you may (or may not) be able to install the package (depends on your distribution and revision).
Check out http://www.linux-wlan.org (www.linux-wlan.org/docs/wlan_adapters.html to go directly to the chipset pages)
Another big Linux wireless site is http://sourceforge.net/projects/madwifi
Most of the current distributions have some flavor of wireless support, older distributions will need a package.
If you can find the O'Reilly book "Linux Unwired" buy it;it's usually discounted because most of the Linux distros are now including WIFI / Cardbus handlers & drivers.
Good Luck
Scott