Are there any customs to pay when importing goods from Mexico into the US?
Do you have to fill out any forms or can just load and drive?

This looks like a good start at answering your question:

http://www.itds.treas.gov/nafta.html

Hi myoarin,

thanks for that link, but...
I found it myself but it's not really helpful. The harmonized tariff
schedule is greek to me :-(
They mention rates of duty 1+2, general and special... I really have no clue.

Cheers,

Philip