A Winter Wedding

Mr. SE and I are headed to Atlanta for a evening wedding in January. This is the first winter wedding I've ever attended, and frankly I'm a little stumped with what to wear. I'd definitely like to wear tights and my new Jessica Simpson suede booties/pumps. So here's where I need your help- what would you wear (or have you worn) to a winter wedding? I'd like to be festive and dressed nice, without freezing!

Here's some ideas for the kinds of dresses I'm looking at.... A Winter Wedding