FNFBB6
Probably not for everyone, but Brooks Brothers are running their Friends and Family event at the moment - 25% off almost everything in stock, including sale items. This works on Filson bags and a few other items that don't usually come up on sale, too. There are exclusions - the details are on the front page.
Shipping is flat rate of US$49.99 via air (I'm not sure what carrier they use) and if you're ordering more than 2-3 items it's about what you'd pay for freight forwarding.