Austen Icons has among some of the best icons I've found. The site includes all the recent Jane Austen movies. Other fabulous sites for downloading icons are P & P 1995, which provides six pages of icons, and this one, which provides screen caps for P & P 2005 . Find both these sites on Cap It!
I love this banner from Austen Icons. Seeing Lizzie like this would make Darcy fall in love with her all over again.
This blog provides a list on the side bar of a large number of sites with icons and screen caps. Why not stay a while and find out what and where they are?