My friend buys on the coach website through Singapore Post. Apparently when you register with Vpost, they will give you a registerd US billing address -- you can call Singapore Post to check...I am not sure of the details because I don't do it...for the value of the goods, I like to check and feel it.
the package goes from elux to your US address, then to Singapore and the whole process would take around 3 weeks? and you would have to pay US taxes (depending on the Vpost adress you have) and also GST for items more than 400 SGD. this is on top of the postage charges of course. i would personally advise against it even though the US dollar is so low now (: