Network log

Hey there.

I am atm in South Africa, on a loong holiday. And since internet down here is VEARY expensive, i was wondering if there is anyway of making a daily log over Data received/sent, just so that i know where i stand, when it comes to contributing to the broadband expenses.

I am no programer what so ever, so a simple task would be great. Maybe for geektool, actionscript that runs when i shutdown pc or something entirely different.

Any help or guidence what so ever, would be really great!

Stefan