Thank you guys so much for your replies.... Fuzzie Alum I kind of agree with you on the white or black rules... Also what kind of color exactly is gun metal ? any sugguestions... my date says it is a neutral so pretty much any color would go with it so I am really at a loss?!?!?
Also from what he said this is a super casual wedding yet I do agree with ya ROWDYsister about it being almost the end of summer and things getting more formal ( yet how casual can it be if he is wearing a suite

) and these are his friends not mine, so I really want to make a good impression, ( my date who knows me all to well told me not to go overboard because 1-I am know for being a bit clothes crazy and

like turn every occasion in to a shopping ordeal and 2- this is allegedly casual) so I don't know...
JMUDUke I am going to go to express again tonite I think I know the dress you are talking about
SigmaChiCard thanks for the boys insight as well as the link

...