I just bought a bottle from amazon also. There's a few different sellers there to choose from - I just go w/ the guy w/ the best price.
The 1st bottle I got from Orbitz came leaking all over the place also. It's more a design feature of the bottle rather than the vendor I'm afraid.
This 2nd bottle I jst got (from amazon) came without any leakage. Go figure.
It's pretty much luck of the draw.