http://www.downloadnplay.com
It is complete legal and guaranteed straight from the box.(and cheaper than other retail stores too! :) )
read the FAQ page for mostly asked questions.
I can give discounts to those who'll like to buy. Just ask nicely.:)
Thank you CAG!
I have searched some good game stores online and rank this as the cheapest and easiest way to get them
http://www.downloadnplay.com/product/StarCraft_II_Wings_of_Liberty_US.php
for the US version
and
"http://www.downloadnplay.com/product/StarCraft_II_Wings_of_Liberty_EU.php
for the EU...