Thanks for the advice ladies - a day later, I am a lot calmer and have a bit more perspective
First, the reason I was all stressed out is because I met with the designer in the store (trunk show) and she claimed that I needed to order the dress this weekend for it to be ready for my wedding... talk about pressure!
I talked to FI, and he was sooo sweeeet! Basically, he said I should wait and shop around some more, and if I absolutely cannot live without this dress, we would just order it and pay the rush fee (I believe the direct quote was "if you are going ot spend a year's worth of college tiution on a dress then what is another 600 bucks")
I am going back to kleinfelds with my mother and FMIL today at 2 to see if they think this dress is as unbelieveable as I do... Kleinfeld's has a stricked no-pictures policy but I will try to make it happen
That's the last thing - this dress is made exclusively for Kleinfeld's in Manhattan... I can't even find a picutre of it, so I wouldn't take the chance of trying to describe it to a seamstress to replicate...
Lauren is right - that's what I get for going to Kleinfelds!