I have found customs here to actually be very friendly and helpful, at least those that I have dealt with. Importing is generally not to problematic here so long you don't try and bullshit them or hide the goods inside tomato sauce tins etc. If you declare honestly what it is most of the time the goods goes through without any problems and other times Customs may require that you fill out a B709A form which is more or less a formality. At least that has been my experience.

Matt.