Umbstyle.com

I'm spending the night with my boyfriend for nye. Were doing a nice candle light dinner at a trendy restaurant, ice skating, walking around the city (Providence), and then going to a couple of are friends parties that their hosting. I want to do something casual and elegant but can you guys help me piece something together? * NOTE* If you could use this site http://www.polyvore.com/ to make an outfit it make things easier! Thanks ♥