The T&C for this card state that it may take up to 4 weeks to make a balance transfer from an account on another card. Unless you have a 0% or very small % interest on that "other card" this would seem to risk incurring quite an interest penalty on the "other card" at the next due date while waiting for Barclay's to make the transfer to your new US card account. Anyone have experience with how long it actually takes for such a transfer so that one may/may not have some degree of confidence about getting hit with a big interest fee from the original card?