Swiftech is a rebrander for most of their items, pumps being Liang D5 or DDC's. They are not any better then any other OEM rebrander for Liang pumps, and in some cases are a fair bit more expensive depending on your geographical location.
And as for the worries about intl shipping, ordering from frozen or sidewinders with shipping via USPS <> CP, most things will be a decent bit cheaper then shopping 'local' with Daz, and the selection is 10x better. If you're up on things, self-declaring with UPS is an even better shipping option.