I wondered why macafee was clogging up my boot up today...
I'm surprised this hasn't been tried before. Windows makes it VERY easy to get access to all keystrokes, open windows, and event calls through the Win32 API.
Anybody want a plug-in that steals passwords, substitutes ref-codes, sucks down your entire address book, sets up an open port, and sends all info to an anonymous free host somewhere?

Start the bidding!!!
j/k