Kent State University Museum has an exhibition on Civil War women’s fashions (On the Home Front: Civil War Fashions and Domestic Life — September 30, 2011 – August 26, 2012), and the exhibition webpage has a nice HD video with an interview with the curator plus a lot of shots (including some nice close-ups!) of the various pieces.
Montpelier is exhibiting costumes from the recent PBS “American Experience” production on Dolley Madison (Dolley Madison’s Life through Fashion: Dressing the Part — June 15, 2011 — March 31, 2012), and the exhibition webpage has another nice HD video interviewing the costume designer, with lots of shots of the various costumes and fittings with the lead actress.