Lots of Canadians from the West. I guess that's where the horsies are!
I order regularly online from US endurance stores and shipping usually is around 25$. Avoid any order coming with UPS as they have outrageous custom fees. USPS are usually reasonably priced and trustworthy.
Talking about customs, I don't know how they decide the charges. Just had two orders in last week, around 200$ each. One I had 40$ taxes and the other... none! No clue why.
I'd like to buy in Canada, but they don't offer any endurance stuff.
NBeventer, what UK store did you order from?