Aleksandar:
See
http://ndiswrapper.sourceforge.net/phpwiki/index.php/List
for the cards which are reported to work with ndiswrapper, and see
http://rt2x00.serialmonkey.com/wiki/index.php/Hardware
for some cards which work with an opensource driver, e.g. the Linksys WMP54G ver. 4.
However, that driver (for the Ralink chip sets) is not yet integrated in the kernel, but it works.
Best regards, Erwin