I go to the States twice a year for supplies and bring back about 3 to 5 hundred lbs on the plane. Dispite what I hear I have always been been treated more than fair by customs. First go through the declare line, dont try to sneak anything in. Try to get the young thin Belizean girl. For Computer or electronics if you are taking them back out of the country with you there is no fee. its about 30% if they are staying, have receipts, if items are old at least have all items and value written on paper, customs seldom argue the prices as long as they make some sort of sense. Nothing is charged on medicine, nothing on personal cloths, do not say you are brining gifts to Belizeans.