Hi
Can I be traced or found if, I use fake Mac, for a connection over Wifi every time and I compromised the wifi router, so I can delete logs anytime (although I don’t think it is necessary because my Mac is faked in every new connection over wifi anyway). When I check my IP on whois.com or whatever.., it shows router's host IP. If I use live cd for example knoppix or backtrack, there are logs on my machine’s memory only till I restart it.
I don’t use any info about myself and I don’t visit webpages in witch I have accounts.

Wifi cards could be recognized by their dynamic Mac, and if we know the type and
manufacturer so we know more details as signal distance. If we don't know the real Mac, I could be traced only by signal strength of my connection. I use very powerful wifi transmitter, so I could be really far from the access-point (wifi router) and many difficulty’s as buildings and etc. could be in our way. I know there are some programs as Gkismet, witch use gps to find the locations of access-points. Can wifi clients be traced in a similar way? What is the risk of being caught in this way?
p.s. sorry for bad English grammar