terminator4 has a very good point, USPS might say that they can insure an overseas package for a given amount, and then it turns out that only 3/4 of the value is actually covered...if you're lucky... Best bet is to really research insurance, liabilities, etc. Before sending...
In my case, I was sending an auction item to France. The sale price was about $950.00. I asked for insurance at the post office for that amount, the clerk said, 'doesn't matter, they will only cover $650.00 ?!!?
UPS may be the way to go.... And, as always, YMMV...