I've bought software from the US as well as Europe and the most I ever had to pay before for postage was $11. Also when buying software goods from the US I pay either with credit card or by PayPal and am allowed to pay in dollars.
CL is the only company that insists that because I live in the UK I must either pay in pound's or euro's, which is rediculous 'cos if I use either of the fore mentioned payment methods they then get paid in dollars and I get a charge for the conversion through my bank.
At the time I made my order for P6 the exchange rate was such that I was almost getting $0.65 - 1.00, but not at Curious Labs, oh no, there I must pay way over the actual price and it does make me feel like I've been a bit ripped off.
Here's hoping that all this fuss is worth it. 8)