MoreCooler.com: It's more cooler with the thing

Can anyone suggest a good packet sniffer? Matt, Sean, Brian? More than just suggest, can anyone point me at one or 'thingy' it for me?

Thanks!

So I've had the new Nav disc for my car for about a month now, and I usually drive in local areas with the voice off (it just interrupts the music). So while running some errands in the Bay Area just before my flight, I turned the voice on so I wouldn't miss any turns. Imagine my shock and horror when an entirely unfamiliar voice, in a sultry and thoroughly unsettling female baritone, instructs me to turn left!

Apparently, enough people complained about the anime-style "kawaii" voice that they've switched it to a Standard English older-woman voice. Bleah. I want Navi back. :-(

I've debated what to name the new one, but I think since I don't like her, she can remain nameless. Bitch.

I wonder if Navi went to the Matrix or back to the source? ^_^