Consider using UPS next time, if you want insurance and tracking its often cheaper than priority mail. The package can always be tracked and much easier to deal with them if its damaged or lost. If you use paypal you can set up a linked UPS account, you get discounted shipping, it comes out of your paypal account, and you print your own shipping labels automatically addressed to the buyer then you can drop your package at any UPS pickup. I leave mine for the UPS guy at work. Plus it can optionally automatically send the buyer a confirmation with tracking number.
Bah, I have never had anything but problems with UPS.
Here is how my the last thing that was sent to me via ups went.
Item was shipped to my work, it came to the ups terminal near my house, and then magically went to a different hotel in my chain all the way across the country, and then back to the seller.
Seller demanded a different address. Told me the item was shipped, I never received it. I don't know if it was UPS screwing up, or Todd from TNT Amusements screwing up, but it has been 3 months now and I still don't have my Willis Defender and Q*Bert overlays.