Is there something that can be deduced from a given MAC (assuming that it is not spoofed) besides the manufacturer ? I would like to learn something about 2 computers that I found on my home wireless...

You can bet that I have chosen a good WPA password... I have mixed uppercase, lower case, numbers, symbols....

BTW, I don't care that anybody sniffs what I'm surfing, but I do care that anybody...

But the question is: if there is no unknown MAC in my network I can be sure that I'm not sniffed ? (let's forget by now MAC spoofing)

They are the clients (computers) connected to the AP (either wired or wireless).

I have detected with Kismet in my wireless home network 2 MAC that do not belong to any computer in my family. I have changed from WEP encryption to WPA and now intrusion seems to be finished.
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I'm loading BT4 by selecting the option "Start Persistent Live CD" in the initial menu. However, I am unable to save anything from one session to the following one. What is what I'm...