Another thing to bear in mind is that if you buy from a bricks-and-mortar store, you will get stung for any local and state sales taxes.

So, by the time you've paid those (8.25% for Los Angeles), international shipping costs, VAT (17.5%) and any applicable duty (none for a digital SLR, but up to 14% for a camcorder for example), your savings might well not be as much as you'd hope.