[Archonsod]

You only need to pay VAT if it (or equivilent) hasn't already been paid at the point of purchase. I don't know if tax is included in the price from Shrapnel (in which case it would be exempt from VAT).
I didn't pay anything extra to get it to the UK, just the cost & shipping from Shrapnel. Depending on locality it's something of a grey area anyway - most EU countries don't classify PC software as a good (because your actually buying a licence) and as such it's technically exempt from most charges and taxes.