Yeah, you'll always have to pay duties unless you're really lucky. What you don't want to pay for is brokerage fees, UPS is horrible for those. I ordered the pre-sleeved cables from Corsair, and they only ship via UPS. When it got to my door I have 15$ in duties and 40$ in brokerage fees. Had it of been shipped by USPS I would have only paid the 15$ duties as brokerage fees are always included with USPS.
Hrmmm, good to know some suppliers can actually declare a lower value to a package, could save some money if it's the case...