When we heard Zac Posen was launching a collection of dresses for under $200, we had to be there. Last night, we joined the designer (and the crowds of anxious shoppers) at Lord & Taylor to fete Zac Posen's Z Spoke dress collection, a line of 12 dresses designed exclusively for the department store. Before the shopping began, we had a few minutes to catch up with the designer, who filled us in on how he pares down red-carpet designs for everyday wear, and what girl he had in mind while dreaming up the dresses for Lord & Taylor. Inside, we've got a look at the dresses, the event, and our whole interview with the ultratalented Zac Posen. Click on for everything you need to know about his new dress collection.