Personally I wouldn't buy from Supergo because:
1) If you put in a seperate address for the billing address, the product you ordered will most likely go to the wrong location (happenned twice to me).
2) I was charged extra shipping that was not on the web page. (twice)
3) They have only one person on customer support at night and she has no power to do anything except for taking your complaints. (called several times)
Look up the better business bureau -- they have a terrible rating. I would buy from another store that will price match.