Rouge Wireless Client

[Sean Murphy]

We have an authorized access point that a rouge apple computer is 
connecting to.  We have its ip and mac of the apple unit however this 
just tells me what access point it is connected to.  Is there a tool to 
find its location by signal strength.

Netstumbler does not currently do this it finds access points and 
personal networks but not actually clients.

What would I use?