Good selection of British goods and don't worry about the conversion rate, the prices are high enough you know you're getting authentic stuff.
The only puzzling thing about this place is that some of the products you can buy here for half the price. Like Cadbury chocolate cookies. Here they sell for $22, when you can buy the same thing (Canadian version) for $10. I know they're from England, but I'm quite sure they'd taste the same. Or maybe not. Maybe there's more fat in them, or maybe they taste blander, that's the British way after all...
But these guys do have a good selection of unique British items. Like tabloids, marmite potato chips, cornish pastys and tea. But no tea infusor, so don't ask.
If you're British and you're still paid in pounds, you'll love British Pantry. If you're Canadian, it's worth a look around....