The UPS international COD info is at
http://www.ups.com/content/us/en/res.../exchange.html and personally I would NOT use it unless myself or SGS inspected the goods first as you have to pay for the goods before you ever get to see the boxes even.
It would work great to combine with SGS; having SGS inspect the merchandise and have them watch the merchandise be loaded with UPS to make sure the merchandise they are loading with UPS is the merchandise you want, then you wire UPS the $$$, and UPS releases the goods for delivery.
Sounds pretty secure to me. But any COD deal where you don't get the chance to inspect the goods first, I would be a bit weary. Even Ling was scamming using COD back when he was in Eugene, Oregon selling memory chips.