A few years ago I was working w/ a girl who loves McDonalds and she said she wanted to be married in one. I thought it was a little wierd, but if you like something that much, go for it.
So that led me to think of a SW wedding.
Now, I'm not married myself, and it's not in my near future.
I envision my wife-to-be in 1 of 3 outfits:
-The white dress Leia wears at the medal ceremony in ANH
-The dress Padme wears in Sen. Palps apt. on Coruscant in E1, the one that looks very Asian. (BTW I wish Hasbro would make a 12" of this. I know that FAO made one 2 years ago, but it was over a $1000! Do it in a similar kind of packaging as the Portrait Edition figs/dolls)
-The Peace Celebration dress Padme wears at the end of E1. And in this sceniario the wife would get a big glass ball instead of a ring (This needs a 12" also!)
I haven't decided what I would wear yet. I think the best looking Jedi robes are the set worn by Mace. The robes look really good on him, but the pants he wears throws it all off! So that's my first choice.
2nd choice would be one of Han's outfits, either from ANH or Bespin