Wedding Gown Websites????

Can anyone suggest a reliable website where I can order a Maggie Sottero Monica gown? Once I pay (via VISA) do I get some sort of confirmation that I`ve paid? I`m a little weary...I don`t want to lose a thousand dollars.

I`ve noticed that the dress is way cheaper online. I live in Canada and it sells for about $1500CAN. Can anyone tell me how much it is in the States?

Thanks!