I'm not sure how it works in Flanders but in the UK import duty is the worst of your worries as its only 2.5% of the total MARKED price of the item. The thing that really starts to pack on the £'s is VAT which is 17.5% of the total. Also Parcel force and Royal mail like to slap on their £15 Customs clearance fee everynow and again which is very annoying. What I've started doing though is to ask anyone that ships stuff out to me to mark down the cost of the item so its under the £31 barrier where its liable for VAT to be added.
So far I've only been badly stung once which was when I bought My Torchic GBA SP from Japan, had to pay about £18.50 on top of the price. I didn't get anything on my US/Canadian DS which arrived last week though. God bless ya DHL
Oh and ma and pa Kettle makes me think of Kettle chips...mmmmmm