Ok heres the deal ...

I have a wireless connection broadcasting to the neighborhood and it's not encrypted. Basically anyone with a 802.11X can get bandwidth on my router at the moment.

What are some good tools to monitor and check which IP addresses have been sending packets back and forth ...? ...how much data is changing hands per unit time..., statistics and all that.

I just want to snoop on the neighbors snaking the network, and see hwat they have been up to. Since it's my network they are snaking, this should not be a difficult thing to do right?

I found a couple of utilities, but I want to know what yall have to say.