This thread has been closed simply because it mentions 'war driving'.
Let me put it another way therefore - in the hope that the forum can embrace such concepts.
I wish to get into computer security on a professional footing, offering advice and yes - cracking services, paid for and with the full consent of individuals or companies - in order to see how secure their network is and offer advice accordingly.
So, ignore 'war driving' and focus instead on the notion that it may be possible for someone to attempt to 'hack' someone's network in order to test it - 'penetration testing' is I believe what they call it.
So, with reference to the original question and in this context I again submit the post in the hope of some good technical advice.
Specifically, I'm aware of different chipsets e.g. Prism and Orinocco - my preference is for a card that will be supported by both Linux (current main stream distributions) and Windows 2K or XP, but Windows alone if cross-OS compatibility makes for a more difficult life.
I am a legitimate computer professional seeking to extend my technical/product knowledge to cover network security, any advice or relevant links appreciated. I do not wish to 'piggy back' for fun.
dave b - linuxwannabee