A good place to start online is at Shail K.
Their formal dresses are modern and elegant, and not just for prom. But let's look at some of them:
This dress is very girly and young. It's happy.
This one is simple, but very pretty. I love the color.
But the more I look at their website, the more I want to buy a dress for myself. Like this one:
I wonder if I'll ever have the figure to wear something like this again.
Seriously, if I lose the extra pounds and continue exercising, I'm totally buying this dress for Christmas 2013!
Prom or no prom, dressing up is so much fun (we should do it more often)!