Hello, i was searching the archives in fedoraforum.org and found another solution. http://www.fedoraforum.org/forum/showthread.php?t=25891means, i gonna start wpa_supplicant with ifup for wlan0 automatically. Then, i gonna tell the system to start BOTH cards on startup.
unfortunately, one of those will get an error, but i get what i want: one of both cards will be started automatically on bootup
Thanks everyone Roger