SkriptAsylum, u r wrong here. in the process of cracking wep/wpa, one of the steps is to find mac address of the laptop connected to target router, change the mac on ur laptop, and try to connect to router. this will create more traffic as the router will be confused. in other wards, it takes 2 seconds to display all mac addresses connected to the router. i takes more time to crack wep then finding mac. it takes a bit longer to search for hidden wifi. i use mac filter together with WPA2+AES, but not to avoid hacking, but to make it harder)
most routers have now WPA2, if not , then there is nothing u can do. also wifi password should not be in the dictionary. to check who is connected to the network at any time, use nmap or ettercap or check ur router.
look here, under "station"