glamorous dress for black-tie party

[smother]

Searching for the ultimate glamorous dress for a black-tie party. Where would you recommend I go shopping for one? Would you go short or long? how to accessorise? what about shoes?? I'm not sure where to begin....please give me your best tips!!

thanks.

What is budget, body type, any preference re style (classic/vintage/likes or dislikes re length, necklines, sleeves?)

What's your budget?

I believe you can do long or short (not too short)- which do you prefer?

What size?

Which colours?