etched glass?
#10
i would get a vinyl cut like what you want but in the reverse to cover the window and use some frosting spray for the glass first and see how you like it for awhile. At least to me etching your windows is a big step, and just my personal preference but i don't dig it that much.
http://www.rustoleum.com/CBGProduct.asp?pid=106
http://www.rustoleum.com/CBGProduct.asp?pid=106