Importing into the UK from north America

[R2DANIO2]

Hi everyone, unsure if this is discussed else where, I failed to find anything on the search function.

So theres a few bits I'm after which I've only seen available at some of the north American stores, some of them you can apparently pre pay the UK VAT so that shouldn't be a problem, however gov uk state import tax as well as the VAT (if not prepaid) because the value is over X amount.

So how much have you had stolen off you by the government when importing other than normal VAT? 

[Silverhunter]

I used to buy from silvergold bull and only ever paid vat at 20%